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Finding the Fourth Proportional to 266,755.70, 400,133.55 and 98,213.94

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Solution

The fourth proportional to 266,755.70, 400,133.55 and 98,213.94 is: 147,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,755.70 : 400,133.55 = 98,213.94 : x
  2. Step 2: Convert to fraction form
    266,755.70/400,133.55 = 98,213.94/x
  3. Step 3: Cross multiply
    266,755.70x = 400,133.55 × 98,213.94
  4. Step 4: Simplify right side
    266,755.70x = 39,298,692,471.69
  5. Step 5: Solve for x
    x = 39,298,692,471.69/266,755.70
  6. Step 6: Final answer
    x = 147,320.91

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1.5x scale

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.