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Finding the Fourth Proportional to 288,696.78, 433,017.33 and 88,963.53

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Solution

The fourth proportional to 288,696.78, 433,017.33 and 88,963.53 is: 133,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,696.78 : 433,017.33 = 88,963.53 : x
  2. Step 2: Convert to fraction form
    288,696.78/433,017.33 = 88,963.53/x
  3. Step 3: Cross multiply
    288,696.78x = 433,017.33 × 88,963.53
  4. Step 4: Simplify right side
    288,696.78x = 38,522,750,227.97
  5. Step 5: Solve for x
    x = 38,522,750,227.97/288,696.78
  6. Step 6: Final answer
    x = 133,436.72

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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.