Home / 231,255.84-319,139.28-130,651.68

Finding the Fourth Proportional to 231,255.84, 319,139.28 and 130,651.68

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Solution

The fourth proportional to 231,255.84, 319,139.28 and 130,651.68 is: 180,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,255.84 : 319,139.28 = 130,651.68 : x
  2. Step 2: Convert to fraction form
    231,255.84/319,139.28 = 130,651.68/x
  3. Step 3: Cross multiply
    231,255.84x = 319,139.28 × 130,651.68
  4. Step 4: Simplify right side
    231,255.84x = 41,696,083,085.99
  5. Step 5: Solve for x
    x = 41,696,083,085.99/231,255.84
  6. Step 6: Final answer
    x = 180,302.83

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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.