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Finding the Fourth Proportional to 308,552.88, 425,681.28 and 193,764

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Solution

The fourth proportional to 308,552.88, 425,681.28 and 193,764 is: 267,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,552.88 : 425,681.28 = 193,764 : x
  2. Step 2: Convert to fraction form
    308,552.88/425,681.28 = 193,764/x
  3. Step 3: Cross multiply
    308,552.88x = 425,681.28 × 193,764
  4. Step 4: Simplify right side
    308,552.88x = 82,481,707,537.92
  5. Step 5: Solve for x
    x = 82,481,707,537.92/308,552.88
  6. Step 6: Final answer
    x = 267,317.90

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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.