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Finding the Fourth Proportional to 301,132, 451,724.16 and 79,516

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Solution

The fourth proportional to 301,132, 451,724.16 and 79,516 is: 119,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,132 : 451,724.16 = 79,516 : x
  2. Step 2: Convert to fraction form
    301,132/451,724.16 = 79,516/x
  3. Step 3: Cross multiply
    301,132x = 451,724.16 × 79,516
  4. Step 4: Simplify right side
    301,132x = 35,919,298,306.56
  5. Step 5: Solve for x
    x = 35,919,298,306.56/301,132
  6. Step 6: Final answer
    x = 119,280.91

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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.