Home / 231,521.79-319,549.71-140,906.94

Finding the Fourth Proportional to 231,521.79, 319,549.71 and 140,906.94

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Solution

The fourth proportional to 231,521.79, 319,549.71 and 140,906.94 is: 194,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,521.79 : 319,549.71 = 140,906.94 : x
  2. Step 2: Convert to fraction form
    231,521.79/319,549.71 = 140,906.94/x
  3. Step 3: Cross multiply
    231,521.79x = 319,549.71 × 140,906.94
  4. Step 4: Simplify right side
    231,521.79x = 45,026,772,148.94
  5. Step 5: Solve for x
    x = 45,026,772,148.94/231,521.79
  6. Step 6: Final answer
    x = 194,481.79

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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.