Home / 266,009.30-367,101.68-145,157.21

Finding the Fourth Proportional to 266,009.30, 367,101.68 and 145,157.21

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Solution

The fourth proportional to 266,009.30, 367,101.68 and 145,157.21 is: 200,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,009.30 : 367,101.68 = 145,157.21 : x
  2. Step 2: Convert to fraction form
    266,009.30/367,101.68 = 145,157.21/x
  3. Step 3: Cross multiply
    266,009.30x = 367,101.68 × 145,157.21
  4. Step 4: Simplify right side
    266,009.30x = 53,287,456,209.97
  5. Step 5: Solve for x
    x = 53,287,456,209.97/266,009.30
  6. Step 6: Final answer
    x = 200,321.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.