Home / 215,666.24-323,344.64-82,434.20

Finding the Fourth Proportional to 215,666.24, 323,344.64 and 82,434.20

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Solution

The fourth proportional to 215,666.24, 323,344.64 and 82,434.20 is: 123,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,666.24 : 323,344.64 = 82,434.20 : x
  2. Step 2: Convert to fraction form
    215,666.24/323,344.64 = 82,434.20/x
  3. Step 3: Cross multiply
    215,666.24x = 323,344.64 × 82,434.20
  4. Step 4: Simplify right side
    215,666.24x = 26,654,654,693.79
  5. Step 5: Solve for x
    x = 26,654,654,693.79/215,666.24
  6. Step 6: Final answer
    x = 123,592.15

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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.