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Finding the Fourth Proportional to 322,477.20, 483,715.78 and 112,115.13

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Solution

The fourth proportional to 322,477.20, 483,715.78 and 112,115.13 is: 168,172.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,477.20 : 483,715.78 = 112,115.13 : x
  2. Step 2: Convert to fraction form
    322,477.20/483,715.78 = 112,115.13/x
  3. Step 3: Cross multiply
    322,477.20x = 483,715.78 × 112,115.13
  4. Step 4: Simplify right side
    322,477.20x = 54,231,857,557.75
  5. Step 5: Solve for x
    x = 54,231,857,557.75/322,477.20
  6. Step 6: Final answer
    x = 168,172.69

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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.