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Finding the Fourth Proportional to 491.56, 737.22 and 354.20

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Solution

The fourth proportional to 491.56, 737.22 and 354.20 is: 531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.56 : 737.22 = 354.20 : x
  2. Step 2: Convert to fraction form
    491.56/737.22 = 354.20/x
  3. Step 3: Cross multiply
    491.56x = 737.22 × 354.20
  4. Step 4: Simplify right side
    491.56x = 261,123.32
  5. Step 5: Solve for x
    x = 261,123.32/491.56
  6. Step 6: Final answer
    x = 531.21

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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.