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Finding the Fourth Proportional to 532.26, 798.12 and 315.72

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Solution

The fourth proportional to 532.26, 798.12 and 315.72 is: 473.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.26 : 798.12 = 315.72 : x
  2. Step 2: Convert to fraction form
    532.26/798.12 = 315.72/x
  3. Step 3: Cross multiply
    532.26x = 798.12 × 315.72
  4. Step 4: Simplify right side
    532.26x = 251,982.45
  5. Step 5: Solve for x
    x = 251,982.45/532.26
  6. Step 6: Final answer
    x = 473.42

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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.