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Finding the Fourth Proportional to 252,587.88, 378,615.24 and 84,062.88

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Solution

The fourth proportional to 252,587.88, 378,615.24 and 84,062.88 is: 126,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,587.88 : 378,615.24 = 84,062.88 : x
  2. Step 2: Convert to fraction form
    252,587.88/378,615.24 = 84,062.88/x
  3. Step 3: Cross multiply
    252,587.88x = 378,615.24 × 84,062.88
  4. Step 4: Simplify right side
    252,587.88x = 31,827,487,486.29
  5. Step 5: Solve for x
    x = 31,827,487,486.29/252,587.88
  6. Step 6: Final answer
    x = 126,005.60

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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.