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Finding the Fourth Proportional to 237.55, 353.90 and 225.70

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Solution

The fourth proportional to 237.55, 353.90 and 225.70 is: 336.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.55 : 353.90 = 225.70 : x
  2. Step 2: Convert to fraction form
    237.55/353.90 = 225.70/x
  3. Step 3: Cross multiply
    237.55x = 353.90 × 225.70
  4. Step 4: Simplify right side
    237.55x = 79,875.23
  5. Step 5: Solve for x
    x = 79,875.23/237.55
  6. Step 6: Final answer
    x = 336.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.