Home / 320,967.58-442,929.85-177,724.55

Finding the Fourth Proportional to 320,967.58, 442,929.85 and 177,724.55

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Solution

The fourth proportional to 320,967.58, 442,929.85 and 177,724.55 is: 245,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,967.58 : 442,929.85 = 177,724.55 : x
  2. Step 2: Convert to fraction form
    320,967.58/442,929.85 = 177,724.55/x
  3. Step 3: Cross multiply
    320,967.58x = 442,929.85 × 177,724.55
  4. Step 4: Simplify right side
    320,967.58x = 78,719,505,613.86
  5. Step 5: Solve for x
    x = 78,719,505,613.86/320,967.58
  6. Step 6: Final answer
    x = 245,256.88

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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.