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Finding the Fourth Proportional to 452.57, 624.54 and 245.57

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Solution

The fourth proportional to 452.57, 624.54 and 245.57 is: 338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.57 : 624.54 = 245.57 : x
  2. Step 2: Convert to fraction form
    452.57/624.54 = 245.57/x
  3. Step 3: Cross multiply
    452.57x = 624.54 × 245.57
  4. Step 4: Simplify right side
    452.57x = 153,364.55
  5. Step 5: Solve for x
    x = 153,364.55/452.57
  6. Step 6: Final answer
    x = 338.88

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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.