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Finding the Fourth Proportional to 284,264.97, 426,620.28 and 198,316.89

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Solution

The fourth proportional to 284,264.97, 426,620.28 and 198,316.89 is: 297,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,264.97 : 426,620.28 = 198,316.89 : x
  2. Step 2: Convert to fraction form
    284,264.97/426,620.28 = 198,316.89/x
  3. Step 3: Cross multiply
    284,264.97x = 426,620.28 × 198,316.89
  4. Step 4: Simplify right side
    284,264.97x = 84,606,007,140.53
  5. Step 5: Solve for x
    x = 84,606,007,140.53/284,264.97
  6. Step 6: Final answer
    x = 297,630.79

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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.