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Finding the Fourth Proportional to 217,451.52, 300,093.20 and 135,828.11

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Solution

The fourth proportional to 217,451.52, 300,093.20 and 135,828.11 is: 187,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,451.52 : 300,093.20 = 135,828.11 : x
  2. Step 2: Convert to fraction form
    217,451.52/300,093.20 = 135,828.11/x
  3. Step 3: Cross multiply
    217,451.52x = 300,093.20 × 135,828.11
  4. Step 4: Simplify right side
    217,451.52x = 40,761,091,836.31
  5. Step 5: Solve for x
    x = 40,761,091,836.31/217,451.52
  6. Step 6: Final answer
    x = 187,449.10

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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.