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Finding the Fourth Proportional to 300,604.64, 451,210.82 and 266,633.19

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Solution

The fourth proportional to 300,604.64, 451,210.82 and 266,633.19 is: 400,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,604.64 : 451,210.82 = 266,633.19 : x
  2. Step 2: Convert to fraction form
    300,604.64/451,210.82 = 266,633.19/x
  3. Step 3: Cross multiply
    300,604.64x = 451,210.82 × 266,633.19
  4. Step 4: Simplify right side
    300,604.64x = 120,307,778,965.95
  5. Step 5: Solve for x
    x = 120,307,778,965.95/300,604.64
  6. Step 6: Final answer
    x = 400,219.31

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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.