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Finding the Fourth Proportional to 667.05, 1,000.49 and 250.53

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Solution

The fourth proportional to 667.05, 1,000.49 and 250.53 is: 375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.05 : 1,000.49 = 250.53 : x
  2. Step 2: Convert to fraction form
    667.05/1,000.49 = 250.53/x
  3. Step 3: Cross multiply
    667.05x = 1,000.49 × 250.53
  4. Step 4: Simplify right side
    667.05x = 250,651.51
  5. Step 5: Solve for x
    x = 250,651.51/667.05
  6. Step 6: Final answer
    x = 375.76

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Double scale
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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.