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Finding the Fourth Proportional to 373,656, 515,878.56 and 239,753.28

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Solution

The fourth proportional to 373,656, 515,878.56 and 239,753.28 is: 331,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,656 : 515,878.56 = 239,753.28 : x
  2. Step 2: Convert to fraction form
    373,656/515,878.56 = 239,753.28/x
  3. Step 3: Cross multiply
    373,656x = 515,878.56 × 239,753.28
  4. Step 4: Simplify right side
    373,656x = 123,683,576,841.68
  5. Step 5: Solve for x
    x = 123,683,576,841.68/373,656
  6. Step 6: Final answer
    x = 331,009.21

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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.