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Finding the Fourth Proportional to 329,743.80, 494,647.02 and 89,860.68

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Solution

The fourth proportional to 329,743.80, 494,647.02 and 89,860.68 is: 134,799.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,743.80 : 494,647.02 = 89,860.68 : x
  2. Step 2: Convert to fraction form
    329,743.80/494,647.02 = 89,860.68/x
  3. Step 3: Cross multiply
    329,743.80x = 494,647.02 × 89,860.68
  4. Step 4: Simplify right side
    329,743.80x = 44,449,317,577.17
  5. Step 5: Solve for x
    x = 44,449,317,577.17/329,743.80
  6. Step 6: Final answer
    x = 134,799.56

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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.