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Finding the Fourth Proportional to 489.03, 731.71 and 373.30

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Solution

The fourth proportional to 489.03, 731.71 and 373.30 is: 558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.03 : 731.71 = 373.30 : x
  2. Step 2: Convert to fraction form
    489.03/731.71 = 373.30/x
  3. Step 3: Cross multiply
    489.03x = 731.71 × 373.30
  4. Step 4: Simplify right side
    489.03x = 273,147.34
  5. Step 5: Solve for x
    x = 273,147.34/489.03
  6. Step 6: Final answer
    x = 558.55

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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.