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Finding the Fourth Proportional to 515,569.95, 773,170.38 and 178,520.08

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Solution

The fourth proportional to 515,569.95, 773,170.38 and 178,520.08 is: 267,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,569.95 : 773,170.38 = 178,520.08 : x
  2. Step 2: Convert to fraction form
    515,569.95/773,170.38 = 178,520.08/x
  3. Step 3: Cross multiply
    515,569.95x = 773,170.38 × 178,520.08
  4. Step 4: Simplify right side
    515,569.95x = 138,026,438,091.23
  5. Step 5: Solve for x
    x = 138,026,438,091.23/515,569.95
  6. Step 6: Final answer
    x = 267,716.22

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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.