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Finding the Fourth Proportional to 266,191.11, 399,259.80 and 88,679.07

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Solution

The fourth proportional to 266,191.11, 399,259.80 and 88,679.07 is: 133,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,191.11 : 399,259.80 = 88,679.07 : x
  2. Step 2: Convert to fraction form
    266,191.11/399,259.80 = 88,679.07/x
  3. Step 3: Cross multiply
    266,191.11x = 399,259.80 × 88,679.07
  4. Step 4: Simplify right side
    266,191.11x = 35,405,987,752.39
  5. Step 5: Solve for x
    x = 35,405,987,752.39/266,191.11
  6. Step 6: Final answer
    x = 133,009.66

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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.