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Finding the Fourth Proportional to 217,159.92, 325,780.84 and 82,264.38

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Solution

The fourth proportional to 217,159.92, 325,780.84 and 82,264.38 is: 123,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,159.92 : 325,780.84 = 82,264.38 : x
  2. Step 2: Convert to fraction form
    217,159.92/325,780.84 = 82,264.38/x
  3. Step 3: Cross multiply
    217,159.92x = 325,780.84 × 82,264.38
  4. Step 4: Simplify right side
    217,159.92x = 26,800,158,818.48
  5. Step 5: Solve for x
    x = 26,800,158,818.48/217,159.92
  6. Step 6: Final answer
    x = 123,412.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.