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Finding the Fourth Proportional to 532.61, 799.07 and 258.71

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Solution

The fourth proportional to 532.61, 799.07 and 258.71 is: 388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.61 : 799.07 = 258.71 : x
  2. Step 2: Convert to fraction form
    532.61/799.07 = 258.71/x
  3. Step 3: Cross multiply
    532.61x = 799.07 × 258.71
  4. Step 4: Simplify right side
    532.61x = 206,730.04
  5. Step 5: Solve for x
    x = 206,730.04/532.61
  6. Step 6: Final answer
    x = 388.15

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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.