Home / 320,723.10-442,591.56-177,489.18

Finding the Fourth Proportional to 320,723.10, 442,591.56 and 177,489.18

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Solution

The fourth proportional to 320,723.10, 442,591.56 and 177,489.18 is: 244,931.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,723.10 : 442,591.56 = 177,489.18 : x
  2. Step 2: Convert to fraction form
    320,723.10/442,591.56 = 177,489.18/x
  3. Step 3: Cross multiply
    320,723.10x = 442,591.56 × 177,489.18
  4. Step 4: Simplify right side
    320,723.10x = 78,555,213,059.32
  5. Step 5: Solve for x
    x = 78,555,213,059.32/320,723.10
  6. Step 6: Final answer
    x = 244,931.57

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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.