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Finding the Fourth Proportional to 399,655.02, 551,497.41 and 227,590.50

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Solution

The fourth proportional to 399,655.02, 551,497.41 and 227,590.50 is: 314,059.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,655.02 : 551,497.41 = 227,590.50 : x
  2. Step 2: Convert to fraction form
    399,655.02/551,497.41 = 227,590.50/x
  3. Step 3: Cross multiply
    399,655.02x = 551,497.41 × 227,590.50
  4. Step 4: Simplify right side
    399,655.02x = 125,515,571,290.61
  5. Step 5: Solve for x
    x = 125,515,571,290.61/399,655.02
  6. Step 6: Final answer
    x = 314,059.79

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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.