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Finding the Fourth Proportional to 423,654.83, 635,487.38 and 124,141.48

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Solution

The fourth proportional to 423,654.83, 635,487.38 and 124,141.48 is: 186,213.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,654.83 : 635,487.38 = 124,141.48 : x
  2. Step 2: Convert to fraction form
    423,654.83/635,487.38 = 124,141.48/x
  3. Step 3: Cross multiply
    423,654.83x = 635,487.38 × 124,141.48
  4. Step 4: Simplify right side
    423,654.83x = 78,890,346,403.54
  5. Step 5: Solve for x
    x = 78,890,346,403.54/423,654.83
  6. Step 6: Final answer
    x = 186,213.73

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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.