Home / 515,412.82-772,934.00-178,361.97

Finding the Fourth Proportional to 515,412.82, 772,934.00 and 178,361.97

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Solution

The fourth proportional to 515,412.82, 772,934.00 and 178,361.97 is: 267,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,412.82 : 772,934.00 = 178,361.97 : x
  2. Step 2: Convert to fraction form
    515,412.82/772,934.00 = 178,361.97/x
  3. Step 3: Cross multiply
    515,412.82x = 772,934.00 × 178,361.97
  4. Step 4: Simplify right side
    515,412.82x = 137,862,027,129.67
  5. Step 5: Solve for x
    x = 137,862,027,129.67/515,412.82
  6. Step 6: Final answer
    x = 267,478.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.