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Finding the Fourth Proportional to 266,901.54, 400,396.05 and 126,583.62

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Solution

The fourth proportional to 266,901.54, 400,396.05 and 126,583.62 is: 189,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,901.54 : 400,396.05 = 126,583.62 : x
  2. Step 2: Convert to fraction form
    266,901.54/400,396.05 = 126,583.62/x
  3. Step 3: Cross multiply
    266,901.54x = 400,396.05 × 126,583.62
  4. Step 4: Simplify right side
    266,901.54x = 50,683,581,442.70
  5. Step 5: Solve for x
    x = 50,683,581,442.70/266,901.54
  6. Step 6: Final answer
    x = 189,896.17

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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.