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Finding the Fourth Proportional to 418,190.08, 627,285.12 and 102,644.32

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Solution

The fourth proportional to 418,190.08, 627,285.12 and 102,644.32 is: 153,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,190.08 : 627,285.12 = 102,644.32 : x
  2. Step 2: Convert to fraction form
    418,190.08/627,285.12 = 102,644.32/x
  3. Step 3: Cross multiply
    418,190.08x = 627,285.12 × 102,644.32
  4. Step 4: Simplify right side
    418,190.08x = 64,387,254,588.52
  5. Step 5: Solve for x
    x = 64,387,254,588.52/418,190.08
  6. Step 6: Final answer
    x = 153,966.48

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Similar ratio
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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.