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Finding the Fourth Proportional to 798.21, 1,197.32 and 250.44

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Solution

The fourth proportional to 798.21, 1,197.32 and 250.44 is: 375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.21 : 1,197.32 = 250.44 : x
  2. Step 2: Convert to fraction form
    798.21/1,197.32 = 250.44/x
  3. Step 3: Cross multiply
    798.21x = 1,197.32 × 250.44
  4. Step 4: Simplify right side
    798.21x = 299,855.57
  5. Step 5: Solve for x
    x = 299,855.57/798.21
  6. Step 6: Final answer
    x = 375.66

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1.5x scale

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.