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Finding the Fourth Proportional to 266,522.40, 399,737.52 and 100,311.84

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Solution

The fourth proportional to 266,522.40, 399,737.52 and 100,311.84 is: 150,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,522.40 : 399,737.52 = 100,311.84 : x
  2. Step 2: Convert to fraction form
    266,522.40/399,737.52 = 100,311.84/x
  3. Step 3: Cross multiply
    266,522.40x = 399,737.52 × 100,311.84
  4. Step 4: Simplify right side
    266,522.40x = 40,098,406,148.24
  5. Step 5: Solve for x
    x = 40,098,406,148.24/266,522.40
  6. Step 6: Final answer
    x = 150,450.42

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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.