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Finding the Fourth Proportional to 307,279.80, 460,919.70 and 166,966.20

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Solution

The fourth proportional to 307,279.80, 460,919.70 and 166,966.20 is: 250,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,279.80 : 460,919.70 = 166,966.20 : x
  2. Step 2: Convert to fraction form
    307,279.80/460,919.70 = 166,966.20/x
  3. Step 3: Cross multiply
    307,279.80x = 460,919.70 × 166,966.20
  4. Step 4: Simplify right side
    307,279.80x = 76,958,010,814.14
  5. Step 5: Solve for x
    x = 76,958,010,814.14/307,279.80
  6. Step 6: Final answer
    x = 250,449.30

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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.