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Finding the Fourth Proportional to 492.07, 737.64 and 167.21

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Solution

The fourth proportional to 492.07, 737.64 and 167.21 is: 250.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.07 : 737.64 = 167.21 : x
  2. Step 2: Convert to fraction form
    492.07/737.64 = 167.21/x
  3. Step 3: Cross multiply
    492.07x = 737.64 × 167.21
  4. Step 4: Simplify right side
    492.07x = 123,337.10
  5. Step 5: Solve for x
    x = 123,337.10/492.07
  6. Step 6: Final answer
    x = 250.65

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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.