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Finding the Fourth Proportional to 489.04, 733.46 and 306.18

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Solution

The fourth proportional to 489.04, 733.46 and 306.18 is: 459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.04 : 733.46 = 306.18 : x
  2. Step 2: Convert to fraction form
    489.04/733.46 = 306.18/x
  3. Step 3: Cross multiply
    489.04x = 733.46 × 306.18
  4. Step 4: Simplify right side
    489.04x = 224,569.25
  5. Step 5: Solve for x
    x = 224,569.25/489.04
  6. Step 6: Final answer
    x = 459.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.