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Finding the Fourth Proportional to 399,710.01, 551,631.27 and 227,635.26

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Solution

The fourth proportional to 399,710.01, 551,631.27 and 227,635.26 is: 314,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,710.01 : 551,631.27 = 227,635.26 : x
  2. Step 2: Convert to fraction form
    399,710.01/551,631.27 = 227,635.26/x
  3. Step 3: Cross multiply
    399,710.01x = 551,631.27 × 227,635.26
  4. Step 4: Simplify right side
    399,710.01x = 125,570,727,570.58
  5. Step 5: Solve for x
    x = 125,570,727,570.58/399,710.01
  6. Step 6: Final answer
    x = 314,154.57

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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.