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Finding the Fourth Proportional to 266,296.06, 399,422.22 and 79,307.56

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Solution

The fourth proportional to 266,296.06, 399,422.22 and 79,307.56 is: 118,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,296.06 : 399,422.22 = 79,307.56 : x
  2. Step 2: Convert to fraction form
    266,296.06/399,422.22 = 79,307.56/x
  3. Step 3: Cross multiply
    266,296.06x = 399,422.22 × 79,307.56
  4. Step 4: Simplify right side
    266,296.06x = 31,677,201,677.98
  5. Step 5: Solve for x
    x = 31,677,201,677.98/266,296.06
  6. Step 6: Final answer
    x = 118,954.83

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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.