Home / 285,265.92-393,670.08-157,943.76

Finding the Fourth Proportional to 285,265.92, 393,670.08 and 157,943.76

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Solution

The fourth proportional to 285,265.92, 393,670.08 and 157,943.76 is: 217,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,265.92 : 393,670.08 = 157,943.76 : x
  2. Step 2: Convert to fraction form
    285,265.92/393,670.08 = 157,943.76/x
  3. Step 3: Cross multiply
    285,265.92x = 393,670.08 × 157,943.76
  4. Step 4: Simplify right side
    285,265.92x = 62,177,732,634.70
  5. Step 5: Solve for x
    x = 62,177,732,634.70/285,265.92
  6. Step 6: Final answer
    x = 217,964.11

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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.