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Finding the Fourth Proportional to 268,600.95, 402,834.41 and 79,023.57

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Solution

The fourth proportional to 268,600.95, 402,834.41 and 79,023.57 is: 118,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,600.95 : 402,834.41 = 79,023.57 : x
  2. Step 2: Convert to fraction form
    268,600.95/402,834.41 = 79,023.57/x
  3. Step 3: Cross multiply
    268,600.95x = 402,834.41 × 79,023.57
  4. Step 4: Simplify right side
    268,600.95x = 31,833,411,380.43
  5. Step 5: Solve for x
    x = 31,833,411,380.43/268,600.95
  6. Step 6: Final answer
    x = 118,515.63

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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.