Home / 387,789.80-581,446.56-150,856.36

Finding the Fourth Proportional to 387,789.80, 581,446.56 and 150,856.36

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Solution

The fourth proportional to 387,789.80, 581,446.56 and 150,856.36 is: 226,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,789.80 : 581,446.56 = 150,856.36 : x
  2. Step 2: Convert to fraction form
    387,789.80/581,446.56 = 150,856.36/x
  3. Step 3: Cross multiply
    387,789.80x = 581,446.56 × 150,856.36
  4. Step 4: Simplify right side
    387,789.80x = 87,714,911,576.12
  5. Step 5: Solve for x
    x = 87,714,911,576.12/387,789.80
  6. Step 6: Final answer
    x = 226,191.90

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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.