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Finding the Fourth Proportional to 300,217.56, 450,380.92 and 142,444.56

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Solution

The fourth proportional to 300,217.56, 450,380.92 and 142,444.56 is: 213,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,217.56 : 450,380.92 = 142,444.56 : x
  2. Step 2: Convert to fraction form
    300,217.56/450,380.92 = 142,444.56/x
  3. Step 3: Cross multiply
    300,217.56x = 450,380.92 × 142,444.56
  4. Step 4: Simplify right side
    300,217.56x = 64,154,311,981.80
  5. Step 5: Solve for x
    x = 64,154,311,981.80/300,217.56
  6. Step 6: Final answer
    x = 213,692.74

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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.