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Finding the Fourth Proportional to 577,110.13, 865,708.71 and 172,270.36

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Solution

The fourth proportional to 577,110.13, 865,708.71 and 172,270.36 is: 258,418.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,110.13 : 865,708.71 = 172,270.36 : x
  2. Step 2: Convert to fraction form
    577,110.13/865,708.71 = 172,270.36/x
  3. Step 3: Cross multiply
    577,110.13x = 865,708.71 × 172,270.36
  4. Step 4: Simplify right side
    577,110.13x = 149,135,951,562.96
  5. Step 5: Solve for x
    x = 149,135,951,562.96/577,110.13
  6. Step 6: Final answer
    x = 258,418.53

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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.