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Finding the Fourth Proportional to 475.44, 655.56 and 377.16

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Solution

The fourth proportional to 475.44, 655.56 and 377.16 is: 520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.44 : 655.56 = 377.16 : x
  2. Step 2: Convert to fraction form
    475.44/655.56 = 377.16/x
  3. Step 3: Cross multiply
    475.44x = 655.56 × 377.16
  4. Step 4: Simplify right side
    475.44x = 247,251.01
  5. Step 5: Solve for x
    x = 247,251.01/475.44
  6. Step 6: Final answer
    x = 520.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.