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Finding the Fourth Proportional to 641.08, 960.84 and 293.93

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Solution

The fourth proportional to 641.08, 960.84 and 293.93 is: 440.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.08 : 960.84 = 293.93 : x
  2. Step 2: Convert to fraction form
    641.08/960.84 = 293.93/x
  3. Step 3: Cross multiply
    641.08x = 960.84 × 293.93
  4. Step 4: Simplify right side
    641.08x = 282,419.70
  5. Step 5: Solve for x
    x = 282,419.70/641.08
  6. Step 6: Final answer
    x = 440.54

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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.