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Finding the Fourth Proportional to 300,909.80, 451,364.70 and 123,544.10

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Solution

The fourth proportional to 300,909.80, 451,364.70 and 123,544.10 is: 185,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,909.80 : 451,364.70 = 123,544.10 : x
  2. Step 2: Convert to fraction form
    300,909.80/451,364.70 = 123,544.10/x
  3. Step 3: Cross multiply
    300,909.80x = 451,364.70 × 123,544.10
  4. Step 4: Simplify right side
    300,909.80x = 55,763,445,633.27
  5. Step 5: Solve for x
    x = 55,763,445,633.27/300,909.80
  6. Step 6: Final answer
    x = 185,316.15

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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.