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Finding the Fourth Proportional to 266,767.53, 399,706.98 and 187,715.67

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Solution

The fourth proportional to 266,767.53, 399,706.98 and 187,715.67 is: 281,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,767.53 : 399,706.98 = 187,715.67 : x
  2. Step 2: Convert to fraction form
    266,767.53/399,706.98 = 187,715.67/x
  3. Step 3: Cross multiply
    266,767.53x = 399,706.98 × 187,715.67
  4. Step 4: Simplify right side
    266,767.53x = 75,031,263,554.38
  5. Step 5: Solve for x
    x = 75,031,263,554.38/266,767.53
  6. Step 6: Final answer
    x = 281,260.85

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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.