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Finding the Fourth Proportional to 522,042.20, 783,136.20 and 222,520.40

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Solution

The fourth proportional to 522,042.20, 783,136.20 and 222,520.40 is: 333,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,042.20 : 783,136.20 = 222,520.40 : x
  2. Step 2: Convert to fraction form
    522,042.20/783,136.20 = 222,520.40/x
  3. Step 3: Cross multiply
    522,042.20x = 783,136.20 × 222,520.40
  4. Step 4: Simplify right side
    522,042.20x = 174,263,780,478.48
  5. Step 5: Solve for x
    x = 174,263,780,478.48/522,042.20
  6. Step 6: Final answer
    x = 333,811.67

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.