Home / 231,284.34-319,172.92-129,313.44

Finding the Fourth Proportional to 231,284.34, 319,172.92 and 129,313.44

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Solution

The fourth proportional to 231,284.34, 319,172.92 and 129,313.44 is: 178,452.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,284.34 : 319,172.92 = 129,313.44 : x
  2. Step 2: Convert to fraction form
    231,284.34/319,172.92 = 129,313.44/x
  3. Step 3: Cross multiply
    231,284.34x = 319,172.92 × 129,313.44
  4. Step 4: Simplify right side
    231,284.34x = 41,273,348,240.04
  5. Step 5: Solve for x
    x = 41,273,348,240.04/231,284.34
  6. Step 6: Final answer
    x = 178,452.84

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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.