Home / 275,065.11-379,714.20-173,240.22

Finding the Fourth Proportional to 275,065.11, 379,714.20 and 173,240.22

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Solution

The fourth proportional to 275,065.11, 379,714.20 and 173,240.22 is: 239,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,065.11 : 379,714.20 = 173,240.22 : x
  2. Step 2: Convert to fraction form
    275,065.11/379,714.20 = 173,240.22/x
  3. Step 3: Cross multiply
    275,065.11x = 379,714.20 × 173,240.22
  4. Step 4: Simplify right side
    275,065.11x = 65,781,771,545.12
  5. Step 5: Solve for x
    x = 65,781,771,545.12/275,065.11
  6. Step 6: Final answer
    x = 239,149.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.