Home / 442,826.10-664,077.15-143,385.30

Finding the Fourth Proportional to 442,826.10, 664,077.15 and 143,385.30

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Solution

The fourth proportional to 442,826.10, 664,077.15 and 143,385.30 is: 215,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,826.10 : 664,077.15 = 143,385.30 : x
  2. Step 2: Convert to fraction form
    442,826.10/664,077.15 = 143,385.30/x
  3. Step 3: Cross multiply
    442,826.10x = 664,077.15 × 143,385.30
  4. Step 4: Simplify right side
    442,826.10x = 95,218,901,375.90
  5. Step 5: Solve for x
    x = 95,218,901,375.90/442,826.10
  6. Step 6: Final answer
    x = 215,025.50

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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.