Home / 231,477.43-319,451.27-129,496.81

Finding the Fourth Proportional to 231,477.43, 319,451.27 and 129,496.81

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Solution

The fourth proportional to 231,477.43, 319,451.27 and 129,496.81 is: 178,712.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,477.43 : 319,451.27 = 129,496.81 : x
  2. Step 2: Convert to fraction form
    231,477.43/319,451.27 = 129,496.81/x
  3. Step 3: Cross multiply
    231,477.43x = 319,451.27 × 129,496.81
  4. Step 4: Simplify right side
    231,477.43x = 41,367,920,410.09
  5. Step 5: Solve for x
    x = 41,367,920,410.09/231,477.43
  6. Step 6: Final answer
    x = 178,712.54

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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.