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Finding the Fourth Proportional to 266,782.25, 400,174.05 and 109,010.70

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Solution

The fourth proportional to 266,782.25, 400,174.05 and 109,010.70 is: 163,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,782.25 : 400,174.05 = 109,010.70 : x
  2. Step 2: Convert to fraction form
    266,782.25/400,174.05 = 109,010.70/x
  3. Step 3: Cross multiply
    266,782.25x = 400,174.05 × 109,010.70
  4. Step 4: Simplify right side
    266,782.25x = 43,623,253,312.34
  5. Step 5: Solve for x
    x = 43,623,253,312.34/266,782.25
  6. Step 6: Final answer
    x = 163,516.33

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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.