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Finding the Fourth Proportional to 300,631.58, 450,363.70 and 268,690.44

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Solution

The fourth proportional to 300,631.58, 450,363.70 and 268,690.44 is: 402,514.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,631.58 : 450,363.70 = 268,690.44 : x
  2. Step 2: Convert to fraction form
    300,631.58/450,363.70 = 268,690.44/x
  3. Step 3: Cross multiply
    300,631.58x = 450,363.70 × 268,690.44
  4. Step 4: Simplify right side
    300,631.58x = 121,008,420,713.03
  5. Step 5: Solve for x
    x = 121,008,420,713.03/300,631.58
  6. Step 6: Final answer
    x = 402,514.00

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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.