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Finding the Fourth Proportional to 266,812.38, 400,310.73 and 100,693.98

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Solution

The fourth proportional to 266,812.38, 400,310.73 and 100,693.98 is: 151,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,812.38 : 400,310.73 = 100,693.98 : x
  2. Step 2: Convert to fraction form
    266,812.38/400,310.73 = 100,693.98/x
  3. Step 3: Cross multiply
    266,812.38x = 400,310.73 × 100,693.98
  4. Step 4: Simplify right side
    266,812.38x = 40,308,880,640.41
  5. Step 5: Solve for x
    x = 40,308,880,640.41/266,812.38
  6. Step 6: Final answer
    x = 151,075.75

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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.