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Finding the Fourth Proportional to 303,743.70, 455,615.55 and 204,210.90

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Solution

The fourth proportional to 303,743.70, 455,615.55 and 204,210.90 is: 306,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,743.70 : 455,615.55 = 204,210.90 : x
  2. Step 2: Convert to fraction form
    303,743.70/455,615.55 = 204,210.90/x
  3. Step 3: Cross multiply
    303,743.70x = 455,615.55 × 204,210.90
  4. Step 4: Simplify right side
    303,743.70x = 93,041,661,519.50
  5. Step 5: Solve for x
    x = 93,041,661,519.50/303,743.70
  6. Step 6: Final answer
    x = 306,316.35

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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.