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Finding the Fourth Proportional to 299,855.18, 449,860.59 and 89,493.11

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Solution

The fourth proportional to 299,855.18, 449,860.59 and 89,493.11 is: 134,262.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,855.18 : 449,860.59 = 89,493.11 : x
  2. Step 2: Convert to fraction form
    299,855.18/449,860.59 = 89,493.11/x
  3. Step 3: Cross multiply
    299,855.18x = 449,860.59 × 89,493.11
  4. Step 4: Simplify right side
    299,855.18x = 40,259,423,265.53
  5. Step 5: Solve for x
    x = 40,259,423,265.53/299,855.18
  6. Step 6: Final answer
    x = 134,262.89

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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.