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Finding the Fourth Proportional to 215,542.34, 323,322.42 and 82,432.34

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Solution

The fourth proportional to 215,542.34, 323,322.42 and 82,432.34 is: 123,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,542.34 : 323,322.42 = 82,432.34 : x
  2. Step 2: Convert to fraction form
    215,542.34/323,322.42 = 82,432.34/x
  3. Step 3: Cross multiply
    215,542.34x = 323,322.42 × 82,432.34
  4. Step 4: Simplify right side
    215,542.34x = 26,652,223,655.06
  5. Step 5: Solve for x
    x = 26,652,223,655.06/215,542.34
  6. Step 6: Final answer
    x = 123,651.92

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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.