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Finding the Fourth Proportional to 216,034.82, 298,044.90 and 135,321.83

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Solution

The fourth proportional to 216,034.82, 298,044.90 and 135,321.83 is: 186,692.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,034.82 : 298,044.90 = 135,321.83 : x
  2. Step 2: Convert to fraction form
    216,034.82/298,044.90 = 135,321.83/x
  3. Step 3: Cross multiply
    216,034.82x = 298,044.90 × 135,321.83
  4. Step 4: Simplify right side
    216,034.82x = 40,331,981,290.17
  5. Step 5: Solve for x
    x = 40,331,981,290.17/216,034.82
  6. Step 6: Final answer
    x = 186,692.04

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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.