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Finding the Fourth Proportional to 532.15, 798.19 and 161.94

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Solution

The fourth proportional to 532.15, 798.19 and 161.94 is: 242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.15 : 798.19 = 161.94 : x
  2. Step 2: Convert to fraction form
    532.15/798.19 = 161.94/x
  3. Step 3: Cross multiply
    532.15x = 798.19 × 161.94
  4. Step 4: Simplify right side
    532.15x = 129,256.10
  5. Step 5: Solve for x
    x = 129,256.10/532.15
  6. Step 6: Final answer
    x = 242.90

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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.