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Finding the Fourth Proportional to 299,463.40, 449,195.10 and 193,175.20

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Solution

The fourth proportional to 299,463.40, 449,195.10 and 193,175.20 is: 289,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,463.40 : 449,195.10 = 193,175.20 : x
  2. Step 2: Convert to fraction form
    299,463.40/449,195.10 = 193,175.20/x
  3. Step 3: Cross multiply
    299,463.40x = 449,195.10 × 193,175.20
  4. Step 4: Simplify right side
    299,463.40x = 86,773,353,281.52
  5. Step 5: Solve for x
    x = 86,773,353,281.52/299,463.40
  6. Step 6: Final answer
    x = 289,762.80

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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.