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Finding the Fourth Proportional to 489.03, 675.23 and 452.18

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Solution

The fourth proportional to 489.03, 675.23 and 452.18 is: 624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.03 : 675.23 = 452.18 : x
  2. Step 2: Convert to fraction form
    489.03/675.23 = 452.18/x
  3. Step 3: Cross multiply
    489.03x = 675.23 × 452.18
  4. Step 4: Simplify right side
    489.03x = 305,319.86
  5. Step 5: Solve for x
    x = 305,319.86/489.03
  6. Step 6: Final answer
    x = 624.34

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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.