Home / 320,861.52-442,802.16-177,618.96

Finding the Fourth Proportional to 320,861.52, 442,802.16 and 177,618.96

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Solution

The fourth proportional to 320,861.52, 442,802.16 and 177,618.96 is: 245,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,861.52 : 442,802.16 = 177,618.96 : x
  2. Step 2: Convert to fraction form
    320,861.52/442,802.16 = 177,618.96/x
  3. Step 3: Cross multiply
    320,861.52x = 442,802.16 × 177,618.96
  4. Step 4: Simplify right side
    320,861.52x = 78,650,059,144.95
  5. Step 5: Solve for x
    x = 78,650,059,144.95/320,861.52
  6. Step 6: Final answer
    x = 245,121.51

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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.