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Finding the Fourth Proportional to 372.56, 557.70 and 333.53

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Solution

The fourth proportional to 372.56, 557.70 and 333.53 is: 499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.56 : 557.70 = 333.53 : x
  2. Step 2: Convert to fraction form
    372.56/557.70 = 333.53/x
  3. Step 3: Cross multiply
    372.56x = 557.70 × 333.53
  4. Step 4: Simplify right side
    372.56x = 186,009.68
  5. Step 5: Solve for x
    x = 186,009.68/372.56
  6. Step 6: Final answer
    x = 499.27

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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.