Home / 231,322.86-319,226.13-129,352.02

Finding the Fourth Proportional to 231,322.86, 319,226.13 and 129,352.02

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Solution

The fourth proportional to 231,322.86, 319,226.13 and 129,352.02 is: 178,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,322.86 : 319,226.13 = 129,352.02 : x
  2. Step 2: Convert to fraction form
    231,322.86/319,226.13 = 129,352.02/x
  3. Step 3: Cross multiply
    231,322.86x = 319,226.13 × 129,352.02
  4. Step 4: Simplify right side
    231,322.86x = 41,292,544,752.28
  5. Step 5: Solve for x
    x = 41,292,544,752.28/231,322.86
  6. Step 6: Final answer
    x = 178,506.11

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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.