Home / 320,984.32-442,960.50-177,753.64

Finding the Fourth Proportional to 320,984.32, 442,960.50 and 177,753.64

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Solution

The fourth proportional to 320,984.32, 442,960.50 and 177,753.64 is: 245,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,984.32 : 442,960.50 = 177,753.64 : x
  2. Step 2: Convert to fraction form
    320,984.32/442,960.50 = 177,753.64/x
  3. Step 3: Cross multiply
    320,984.32x = 442,960.50 × 177,753.64
  4. Step 4: Simplify right side
    320,984.32x = 78,737,841,251.22
  5. Step 5: Solve for x
    x = 78,737,841,251.22/320,984.32
  6. Step 6: Final answer
    x = 245,301.21

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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.