Home / 515,146.55-772,837.61-178,186.95

Finding the Fourth Proportional to 515,146.55, 772,837.61 and 178,186.95

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Solution

The fourth proportional to 515,146.55, 772,837.61 and 178,186.95 is: 267,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,146.55 : 772,837.61 = 178,186.95 : x
  2. Step 2: Convert to fraction form
    515,146.55/772,837.61 = 178,186.95/x
  3. Step 3: Cross multiply
    515,146.55x = 772,837.61 × 178,186.95
  4. Step 4: Simplify right side
    515,146.55x = 137,709,575,680.26
  5. Step 5: Solve for x
    x = 137,709,575,680.26/515,146.55
  6. Step 6: Final answer
    x = 267,321.17

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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.