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Finding the Fourth Proportional to 532.98, 799.47 and 316.71

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Solution

The fourth proportional to 532.98, 799.47 and 316.71 is: 475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.98 : 799.47 = 316.71 : x
  2. Step 2: Convert to fraction form
    532.98/799.47 = 316.71/x
  3. Step 3: Cross multiply
    532.98x = 799.47 × 316.71
  4. Step 4: Simplify right side
    532.98x = 253,200.14
  5. Step 5: Solve for x
    x = 253,200.14/532.98
  6. Step 6: Final answer
    x = 475.07

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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.