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Finding the Fourth Proportional to 532.34, 798.42 and 147.50

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Solution

The fourth proportional to 532.34, 798.42 and 147.50 is: 221.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.34 : 798.42 = 147.50 : x
  2. Step 2: Convert to fraction form
    532.34/798.42 = 147.50/x
  3. Step 3: Cross multiply
    532.34x = 798.42 × 147.50
  4. Step 4: Simplify right side
    532.34x = 117,766.95
  5. Step 5: Solve for x
    x = 117,766.95/532.34
  6. Step 6: Final answer
    x = 221.23

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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.