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Finding the Fourth Proportional to 300,437.68, 450,891.36 and 132,074.32

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Solution

The fourth proportional to 300,437.68, 450,891.36 and 132,074.32 is: 198,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,437.68 : 450,891.36 = 132,074.32 : x
  2. Step 2: Convert to fraction form
    300,437.68/450,891.36 = 132,074.32/x
  3. Step 3: Cross multiply
    300,437.68x = 450,891.36 × 132,074.32
  4. Step 4: Simplify right side
    300,437.68x = 59,551,169,765.88
  5. Step 5: Solve for x
    x = 59,551,169,765.88/300,437.68
  6. Step 6: Final answer
    x = 198,214.72

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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.