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Finding the Fourth Proportional to 392,494.76, 541,501.04 and 222,630.48

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Solution

The fourth proportional to 392,494.76, 541,501.04 and 222,630.48 is: 307,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,494.76 : 541,501.04 = 222,630.48 : x
  2. Step 2: Convert to fraction form
    392,494.76/541,501.04 = 222,630.48/x
  3. Step 3: Cross multiply
    392,494.76x = 541,501.04 × 222,630.48
  4. Step 4: Simplify right side
    392,494.76x = 120,554,636,455.70
  5. Step 5: Solve for x
    x = 120,554,636,455.70/392,494.76
  6. Step 6: Final answer
    x = 307,149.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.