Home / 215,378.55-323,089.92-82,370.70

Finding the Fourth Proportional to 215,378.55, 323,089.92 and 82,370.70

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Solution

The fourth proportional to 215,378.55, 323,089.92 and 82,370.70 is: 123,564.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,378.55 : 323,089.92 = 82,370.70 : x
  2. Step 2: Convert to fraction form
    215,378.55/323,089.92 = 82,370.70/x
  3. Step 3: Cross multiply
    215,378.55x = 323,089.92 × 82,370.70
  4. Step 4: Simplify right side
    215,378.55x = 26,613,142,873.34
  5. Step 5: Solve for x
    x = 26,613,142,873.34/215,378.55
  6. Step 6: Final answer
    x = 123,564.50

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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.