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Finding the Fourth Proportional to 293,089.43, 439,404.47 and 115,729.20

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Solution

The fourth proportional to 293,089.43, 439,404.47 and 115,729.20 is: 173,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,089.43 : 439,404.47 = 115,729.20 : x
  2. Step 2: Convert to fraction form
    293,089.43/439,404.47 = 115,729.20/x
  3. Step 3: Cross multiply
    293,089.43x = 439,404.47 × 115,729.20
  4. Step 4: Simplify right side
    293,089.43x = 50,851,927,789.52
  5. Step 5: Solve for x
    x = 50,851,927,789.52/293,089.43
  6. Step 6: Final answer
    x = 173,503.11

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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.