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Finding the Fourth Proportional to 452.59, 624.31 and 304.97

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Solution

The fourth proportional to 452.59, 624.31 and 304.97 is: 420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.59 : 624.31 = 304.97 : x
  2. Step 2: Convert to fraction form
    452.59/624.31 = 304.97/x
  3. Step 3: Cross multiply
    452.59x = 624.31 × 304.97
  4. Step 4: Simplify right side
    452.59x = 190,391.94
  5. Step 5: Solve for x
    x = 190,391.94/452.59
  6. Step 6: Final answer
    x = 420.67

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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.