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Finding the Fourth Proportional to 266,065.34, 398,751.46 and 108,109.13

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Solution

The fourth proportional to 266,065.34, 398,751.46 and 108,109.13 is: 162,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,065.34 : 398,751.46 = 108,109.13 : x
  2. Step 2: Convert to fraction form
    266,065.34/398,751.46 = 108,109.13/x
  3. Step 3: Cross multiply
    266,065.34x = 398,751.46 × 108,109.13
  4. Step 4: Simplify right side
    266,065.34x = 43,108,671,162.80
  5. Step 5: Solve for x
    x = 43,108,671,162.80/266,065.34
  6. Step 6: Final answer
    x = 162,022.88

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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.