Home / 231,334.31-319,242.20-134,561.38

Finding the Fourth Proportional to 231,334.31, 319,242.20 and 134,561.38

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Solution

The fourth proportional to 231,334.31, 319,242.20 and 134,561.38 is: 185,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,334.31 : 319,242.20 = 134,561.38 : x
  2. Step 2: Convert to fraction form
    231,334.31/319,242.20 = 134,561.38/x
  3. Step 3: Cross multiply
    231,334.31x = 319,242.20 × 134,561.38
  4. Step 4: Simplify right side
    231,334.31x = 42,957,670,313.43
  5. Step 5: Solve for x
    x = 42,957,670,313.43/231,334.31
  6. Step 6: Final answer
    x = 185,695.20

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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.