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Finding the Fourth Proportional to 489.25, 734.00 and 283.46

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Solution

The fourth proportional to 489.25, 734.00 and 283.46 is: 425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    489.25 : 734.00 = 283.46 : x
  2. Step 2: Convert to fraction form
    489.25/734.00 = 283.46/x
  3. Step 3: Cross multiply
    489.25x = 734.00 × 283.46
  4. Step 4: Simplify right side
    489.25x = 208,054.55
  5. Step 5: Solve for x
    x = 208,054.55/489.25
  6. Step 6: Final answer
    x = 425.26

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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.