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Finding the Fourth Proportional to 266,870.03, 400,188.33 and 79,837.79

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Solution

The fourth proportional to 266,870.03, 400,188.33 and 79,837.79 is: 119,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,870.03 : 400,188.33 = 79,837.79 : x
  2. Step 2: Convert to fraction form
    266,870.03/400,188.33 = 79,837.79/x
  3. Step 3: Cross multiply
    266,870.03x = 400,188.33 × 79,837.79
  4. Step 4: Simplify right side
    266,870.03x = 31,950,149,850.05
  5. Step 5: Solve for x
    x = 31,950,149,850.05/266,870.03
  6. Step 6: Final answer
    x = 119,721.76

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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.