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Finding the Fourth Proportional to 438,049.99, 656,823.48 and 171,498.43

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Solution

The fourth proportional to 438,049.99, 656,823.48 and 171,498.43 is: 257,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,049.99 : 656,823.48 = 171,498.43 : x
  2. Step 2: Convert to fraction form
    438,049.99/656,823.48 = 171,498.43/x
  3. Step 3: Cross multiply
    438,049.99x = 656,823.48 × 171,498.43
  4. Step 4: Simplify right side
    438,049.99x = 112,644,195,607.14
  5. Step 5: Solve for x
    x = 112,644,195,607.14/438,049.99
  6. Step 6: Final answer
    x = 257,149.18

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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.