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Finding the Fourth Proportional to 475.81, 713.30 and 403.16

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Solution

The fourth proportional to 475.81, 713.30 and 403.16 is: 604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.81 : 713.30 = 403.16 : x
  2. Step 2: Convert to fraction form
    475.81/713.30 = 403.16/x
  3. Step 3: Cross multiply
    475.81x = 713.30 × 403.16
  4. Step 4: Simplify right side
    475.81x = 287,568.45
  5. Step 5: Solve for x
    x = 287,568.45/475.81
  6. Step 6: Final answer
    x = 604.38

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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.