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Finding the Fourth Proportional to 269,316.30, 403,850.25 and 79,708.87

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Solution

The fourth proportional to 269,316.30, 403,850.25 and 79,708.87 is: 119,526.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,316.30 : 403,850.25 = 79,708.87 : x
  2. Step 2: Convert to fraction form
    269,316.30/403,850.25 = 79,708.87/x
  3. Step 3: Cross multiply
    269,316.30x = 403,850.25 × 79,708.87
  4. Step 4: Simplify right side
    269,316.30x = 32,190,444,658.92
  5. Step 5: Solve for x
    x = 32,190,444,658.92/269,316.30
  6. Step 6: Final answer
    x = 119,526.54

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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.