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Finding the Fourth Proportional to 532.56, 799.14 and 258.65

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Solution

The fourth proportional to 532.56, 799.14 and 258.65 is: 388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.56 : 799.14 = 258.65 : x
  2. Step 2: Convert to fraction form
    532.56/799.14 = 258.65/x
  3. Step 3: Cross multiply
    532.56x = 799.14 × 258.65
  4. Step 4: Simplify right side
    532.56x = 206,693.57
  5. Step 5: Solve for x
    x = 206,693.57/532.56
  6. Step 6: Final answer
    x = 388.11

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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.