Home / 266,923.30-400,321.77-77,333.49

Finding the Fourth Proportional to 266,923.30, 400,321.77 and 77,333.49

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Solution

The fourth proportional to 266,923.30, 400,321.77 and 77,333.49 is: 115,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,923.30 : 400,321.77 = 77,333.49 : x
  2. Step 2: Convert to fraction form
    266,923.30/400,321.77 = 77,333.49/x
  3. Step 3: Cross multiply
    266,923.30x = 400,321.77 × 77,333.49
  4. Step 4: Simplify right side
    266,923.30x = 30,958,279,597.08
  5. Step 5: Solve for x
    x = 30,958,279,597.08/266,923.30
  6. Step 6: Final answer
    x = 115,981.93

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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.