Home / 231,574.29-319,578.23-129,598.93

Finding the Fourth Proportional to 231,574.29, 319,578.23 and 129,598.93

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Solution

The fourth proportional to 231,574.29, 319,578.23 and 129,598.93 is: 178,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,574.29 : 319,578.23 = 129,598.93 : x
  2. Step 2: Convert to fraction form
    231,574.29/319,578.23 = 129,598.93/x
  3. Step 3: Cross multiply
    231,574.29x = 319,578.23 × 129,598.93
  4. Step 4: Simplify right side
    231,574.29x = 41,416,996,659.29
  5. Step 5: Solve for x
    x = 41,416,996,659.29/231,574.29
  6. Step 6: Final answer
    x = 178,849.72

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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.