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Finding the Fourth Proportional to 317,134.52, 437,645.78 and 173,891.60

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Solution

The fourth proportional to 317,134.52, 437,645.78 and 173,891.60 is: 239,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,134.52 : 437,645.78 = 173,891.60 : x
  2. Step 2: Convert to fraction form
    317,134.52/437,645.78 = 173,891.60/x
  3. Step 3: Cross multiply
    317,134.52x = 437,645.78 × 173,891.60
  4. Step 4: Simplify right side
    317,134.52x = 76,102,924,917.45
  5. Step 5: Solve for x
    x = 76,102,924,917.45/317,134.52
  6. Step 6: Final answer
    x = 239,970.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.