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Finding the Fourth Proportional to 231,309.70, 347,019.99 and 79,504.18

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Solution

The fourth proportional to 231,309.70, 347,019.99 and 79,504.18 is: 119,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,309.70 : 347,019.99 = 79,504.18 : x
  2. Step 2: Convert to fraction form
    231,309.70/347,019.99 = 79,504.18/x
  3. Step 3: Cross multiply
    231,309.70x = 347,019.99 × 79,504.18
  4. Step 4: Simplify right side
    231,309.70x = 27,589,539,748.56
  5. Step 5: Solve for x
    x = 27,589,539,748.56/231,309.70
  6. Step 6: Final answer
    x = 119,275.33

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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.