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Finding the Fourth Proportional to 328,614.75, 492,922.17 and 79,296.75

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Solution

The fourth proportional to 328,614.75, 492,922.17 and 79,296.75 is: 118,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,614.75 : 492,922.17 = 79,296.75 : x
  2. Step 2: Convert to fraction form
    328,614.75/492,922.17 = 79,296.75/x
  3. Step 3: Cross multiply
    328,614.75x = 492,922.17 × 79,296.75
  4. Step 4: Simplify right side
    328,614.75x = 39,087,126,083.95
  5. Step 5: Solve for x
    x = 39,087,126,083.95/328,614.75
  6. Step 6: Final answer
    x = 118,945.14

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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.