Home / 285,131.20-393,468.96-157,794.88

Finding the Fourth Proportional to 285,131.20, 393,468.96 and 157,794.88

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Solution

The fourth proportional to 285,131.20, 393,468.96 and 157,794.88 is: 217,750.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,131.20 : 393,468.96 = 157,794.88 : x
  2. Step 2: Convert to fraction form
    285,131.20/393,468.96 = 157,794.88/x
  3. Step 3: Cross multiply
    285,131.20x = 393,468.96 × 157,794.88
  4. Step 4: Simplify right side
    285,131.20x = 62,087,387,326.92
  5. Step 5: Solve for x
    x = 62,087,387,326.92/285,131.20
  6. Step 6: Final answer
    x = 217,750.24

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1.5x scale

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.