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Finding the Fourth Proportional to 399,560.04, 551,401.02 and 229,805.10

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Solution

The fourth proportional to 399,560.04, 551,401.02 and 229,805.10 is: 317,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,560.04 : 551,401.02 = 229,805.10 : x
  2. Step 2: Convert to fraction form
    399,560.04/551,401.02 = 229,805.10/x
  3. Step 3: Cross multiply
    399,560.04x = 551,401.02 × 229,805.10
  4. Step 4: Simplify right side
    399,560.04x = 126,714,766,541.20
  5. Step 5: Solve for x
    x = 126,714,766,541.20/399,560.04
  6. Step 6: Final answer
    x = 317,135.73

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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.