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Finding the Fourth Proportional to 532.50, 798.48 and 258.48

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Solution

The fourth proportional to 532.50, 798.48 and 258.48 is: 387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.50 : 798.48 = 258.48 : x
  2. Step 2: Convert to fraction form
    532.50/798.48 = 258.48/x
  3. Step 3: Cross multiply
    532.50x = 798.48 × 258.48
  4. Step 4: Simplify right side
    532.50x = 206,391.11
  5. Step 5: Solve for x
    x = 206,391.11/532.50
  6. Step 6: Final answer
    x = 387.59

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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.