Home / 515,402.88-772,914.78-178,357.02

Finding the Fourth Proportional to 515,402.88, 772,914.78 and 178,357.02

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Solution

The fourth proportional to 515,402.88, 772,914.78 and 178,357.02 is: 267,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,402.88 : 772,914.78 = 178,357.02 : x
  2. Step 2: Convert to fraction form
    515,402.88/772,914.78 = 178,357.02/x
  3. Step 3: Cross multiply
    515,402.88x = 772,914.78 × 178,357.02
  4. Step 4: Simplify right side
    515,402.88x = 137,854,776,874.76
  5. Step 5: Solve for x
    x = 137,854,776,874.76/515,402.88
  6. Step 6: Final answer
    x = 267,469.94

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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.