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Finding the Fourth Proportional to 960.04, 1,439.24 and 301.49

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Solution

The fourth proportional to 960.04, 1,439.24 and 301.49 is: 451.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.04 : 1,439.24 = 301.49 : x
  2. Step 2: Convert to fraction form
    960.04/1,439.24 = 301.49/x
  3. Step 3: Cross multiply
    960.04x = 1,439.24 × 301.49
  4. Step 4: Simplify right side
    960.04x = 433,922.95
  5. Step 5: Solve for x
    x = 433,922.95/960.04
  6. Step 6: Final answer
    x = 451.99

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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.