Home / 215,446.16-323,191.35-82,438.29

Finding the Fourth Proportional to 215,446.16, 323,191.35 and 82,438.29

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Solution

The fourth proportional to 215,446.16, 323,191.35 and 82,438.29 is: 123,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,446.16 : 323,191.35 = 82,438.29 : x
  2. Step 2: Convert to fraction form
    215,446.16/323,191.35 = 82,438.29/x
  3. Step 3: Cross multiply
    215,446.16x = 323,191.35 × 82,438.29
  4. Step 4: Simplify right side
    215,446.16x = 26,643,342,236.79
  5. Step 5: Solve for x
    x = 26,643,342,236.79/215,446.16
  6. Step 6: Final answer
    x = 123,665.89

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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.