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Finding the Fourth Proportional to 198,604, 274,307.52 and 131,419.36

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Solution

The fourth proportional to 198,604, 274,307.52 and 131,419.36 is: 181,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,604 : 274,307.52 = 131,419.36 : x
  2. Step 2: Convert to fraction form
    198,604/274,307.52 = 131,419.36/x
  3. Step 3: Cross multiply
    198,604x = 274,307.52 × 131,419.36
  4. Step 4: Simplify right side
    198,604x = 36,049,318,721.59
  5. Step 5: Solve for x
    x = 36,049,318,721.59/198,604
  6. Step 6: Final answer
    x = 181,513.56

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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.