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Finding the Fourth Proportional to 489.59, 734.24 and 335.48

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Solution

The fourth proportional to 489.59, 734.24 and 335.48 is: 503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.59 : 734.24 = 335.48 : x
  2. Step 2: Convert to fraction form
    489.59/734.24 = 335.48/x
  3. Step 3: Cross multiply
    489.59x = 734.24 × 335.48
  4. Step 4: Simplify right side
    489.59x = 246,317.49
  5. Step 5: Solve for x
    x = 246,317.49/489.59
  6. Step 6: Final answer
    x = 503.11

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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.