Home / 217,440.92-300,071.52-131,387.96

Finding the Fourth Proportional to 217,440.92, 300,071.52 and 131,387.96

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Solution

The fourth proportional to 217,440.92, 300,071.52 and 131,387.96 is: 181,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,440.92 : 300,071.52 = 131,387.96 : x
  2. Step 2: Convert to fraction form
    217,440.92/300,071.52 = 131,387.96/x
  3. Step 3: Cross multiply
    217,440.92x = 300,071.52 × 131,387.96
  4. Step 4: Simplify right side
    217,440.92x = 39,425,784,866.90
  5. Step 5: Solve for x
    x = 39,425,784,866.90/217,440.92
  6. Step 6: Final answer
    x = 181,317.23

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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.