Home / 231,470.68-319,391.76-134,696.20

Finding the Fourth Proportional to 231,470.68, 319,391.76 and 134,696.20

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Solution

The fourth proportional to 231,470.68, 319,391.76 and 134,696.20 is: 185,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,470.68 : 319,391.76 = 134,696.20 : x
  2. Step 2: Convert to fraction form
    231,470.68/319,391.76 = 134,696.20/x
  3. Step 3: Cross multiply
    231,470.68x = 319,391.76 × 134,696.20
  4. Step 4: Simplify right side
    231,470.68x = 43,020,856,383.31
  5. Step 5: Solve for x
    x = 43,020,856,383.31/231,470.68
  6. Step 6: Final answer
    x = 185,858.77

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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.