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Finding the Fourth Proportional to 452.32, 624.20 and 245.32

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Solution

The fourth proportional to 452.32, 624.20 and 245.32 is: 338.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.32 : 624.20 = 245.32 : x
  2. Step 2: Convert to fraction form
    452.32/624.20 = 245.32/x
  3. Step 3: Cross multiply
    452.32x = 624.20 × 245.32
  4. Step 4: Simplify right side
    452.32x = 153,128.74
  5. Step 5: Solve for x
    x = 153,128.74/452.32
  6. Step 6: Final answer
    x = 338.54

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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.