Home / 285,070.29-393,405.17-157,757.73

Finding the Fourth Proportional to 285,070.29, 393,405.17 and 157,757.73

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Solution

The fourth proportional to 285,070.29, 393,405.17 and 157,757.73 is: 217,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,070.29 : 393,405.17 = 157,757.73 : x
  2. Step 2: Convert to fraction form
    285,070.29/393,405.17 = 157,757.73/x
  3. Step 3: Cross multiply
    285,070.29x = 393,405.17 × 157,757.73
  4. Step 4: Simplify right side
    285,070.29x = 62,062,705,800.68
  5. Step 5: Solve for x
    x = 62,062,705,800.68/285,070.29
  6. Step 6: Final answer
    x = 217,710.19

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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.