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Finding the Fourth Proportional to 485,351.70, 727,480.80 and 232,753.20

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Solution

The fourth proportional to 485,351.70, 727,480.80 and 232,753.20 is: 348,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,351.70 : 727,480.80 = 232,753.20 : x
  2. Step 2: Convert to fraction form
    485,351.70/727,480.80 = 232,753.20/x
  3. Step 3: Cross multiply
    485,351.70x = 727,480.80 × 232,753.20
  4. Step 4: Simplify right side
    485,351.70x = 169,323,484,138.56
  5. Step 5: Solve for x
    x = 169,323,484,138.56/485,351.70
  6. Step 6: Final answer
    x = 348,867.60

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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.