Home / 285,207.16-393,585.97-157,882.76

Finding the Fourth Proportional to 285,207.16, 393,585.97 and 157,882.76

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Solution

The fourth proportional to 285,207.16, 393,585.97 and 157,882.76 is: 217,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,207.16 : 393,585.97 = 157,882.76 : x
  2. Step 2: Convert to fraction form
    285,207.16/393,585.97 = 157,882.76/x
  3. Step 3: Cross multiply
    285,207.16x = 393,585.97 × 157,882.76
  4. Step 4: Simplify right side
    285,207.16x = 62,140,439,240.88
  5. Step 5: Solve for x
    x = 62,140,439,240.88/285,207.16
  6. Step 6: Final answer
    x = 217,878.26

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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.