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Finding the Fourth Proportional to 327,200.21, 490,535.56 and 147,153.78

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Solution

The fourth proportional to 327,200.21, 490,535.56 and 147,153.78 is: 220,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,200.21 : 490,535.56 = 147,153.78 : x
  2. Step 2: Convert to fraction form
    327,200.21/490,535.56 = 147,153.78/x
  3. Step 3: Cross multiply
    327,200.21x = 490,535.56 × 147,153.78
  4. Step 4: Simplify right side
    327,200.21x = 72,184,159,372.11
  5. Step 5: Solve for x
    x = 72,184,159,372.11/327,200.21
  6. Step 6: Final answer
    x = 220,611.59

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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.