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Finding the Fourth Proportional to 266,673.90, 399,865.05 and 108,723.90

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Solution

The fourth proportional to 266,673.90, 399,865.05 and 108,723.90 is: 163,026.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,673.90 : 399,865.05 = 108,723.90 : x
  2. Step 2: Convert to fraction form
    266,673.90/399,865.05 = 108,723.90/x
  3. Step 3: Cross multiply
    266,673.90x = 399,865.05 × 108,723.90
  4. Step 4: Simplify right side
    266,673.90x = 43,474,887,709.70
  5. Step 5: Solve for x
    x = 43,474,887,709.70/266,673.90
  6. Step 6: Final answer
    x = 163,026.41

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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.