Home / 285,147.06-393,498.18-157,819.92

Finding the Fourth Proportional to 285,147.06, 393,498.18 and 157,819.92

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Solution

The fourth proportional to 285,147.06, 393,498.18 and 157,819.92 is: 217,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,147.06 : 393,498.18 = 157,819.92 : x
  2. Step 2: Convert to fraction form
    285,147.06/393,498.18 = 157,819.92/x
  3. Step 3: Cross multiply
    285,147.06x = 393,498.18 × 157,819.92
  4. Step 4: Simplify right side
    285,147.06x = 62,101,851,287.75
  5. Step 5: Solve for x
    x = 62,101,851,287.75/285,147.06
  6. Step 6: Final answer
    x = 217,788.85

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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.