Home / 320,397.12-442,114.20-177,134.04

Finding the Fourth Proportional to 320,397.12, 442,114.20 and 177,134.04

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Solution

The fourth proportional to 320,397.12, 442,114.20 and 177,134.04 is: 244,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,397.12 : 442,114.20 = 177,134.04 : x
  2. Step 2: Convert to fraction form
    320,397.12/442,114.20 = 177,134.04/x
  3. Step 3: Cross multiply
    320,397.12x = 442,114.20 × 177,134.04
  4. Step 4: Simplify right side
    320,397.12x = 78,313,474,387.37
  5. Step 5: Solve for x
    x = 78,313,474,387.37/320,397.12
  6. Step 6: Final answer
    x = 244,426.27

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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.