Home / 384,865.38-577,383.12-132,140.12

Finding the Fourth Proportional to 384,865.38, 577,383.12 and 132,140.12

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Solution

The fourth proportional to 384,865.38, 577,383.12 and 132,140.12 is: 198,239.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,865.38 : 577,383.12 = 132,140.12 : x
  2. Step 2: Convert to fraction form
    384,865.38/577,383.12 = 132,140.12/x
  3. Step 3: Cross multiply
    384,865.38x = 577,383.12 × 132,140.12
  4. Step 4: Simplify right side
    384,865.38x = 76,295,471,875.86
  5. Step 5: Solve for x
    x = 76,295,471,875.86/384,865.38
  6. Step 6: Final answer
    x = 198,239.37

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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.