Home / 320,933.60-442,902.20-177,693.64

Finding the Fourth Proportional to 320,933.60, 442,902.20 and 177,693.64

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Solution

The fourth proportional to 320,933.60, 442,902.20 and 177,693.64 is: 245,224.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,933.60 : 442,902.20 = 177,693.64 : x
  2. Step 2: Convert to fraction form
    320,933.60/442,902.20 = 177,693.64/x
  3. Step 3: Cross multiply
    320,933.60x = 442,902.20 × 177,693.64
  4. Step 4: Simplify right side
    320,933.60x = 78,700,904,082.01
  5. Step 5: Solve for x
    x = 78,700,904,082.01/320,933.60
  6. Step 6: Final answer
    x = 245,224.88

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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.