Home / 231,764.76-319,839.90-151,243.80

Finding the Fourth Proportional to 231,764.76, 319,839.90 and 151,243.80

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Solution

The fourth proportional to 231,764.76, 319,839.90 and 151,243.80 is: 208,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,764.76 : 319,839.90 = 151,243.80 : x
  2. Step 2: Convert to fraction form
    231,764.76/319,839.90 = 151,243.80/x
  3. Step 3: Cross multiply
    231,764.76x = 319,839.90 × 151,243.80
  4. Step 4: Simplify right side
    231,764.76x = 48,373,801,867.62
  5. Step 5: Solve for x
    x = 48,373,801,867.62/231,764.76
  6. Step 6: Final answer
    x = 208,719.40

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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.