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Finding the Fourth Proportional to 439.26, 606.15 and 242.76

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Solution

The fourth proportional to 439.26, 606.15 and 242.76 is: 335.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.26 : 606.15 = 242.76 : x
  2. Step 2: Convert to fraction form
    439.26/606.15 = 242.76/x
  3. Step 3: Cross multiply
    439.26x = 606.15 × 242.76
  4. Step 4: Simplify right side
    439.26x = 147,151.25
  5. Step 5: Solve for x
    x = 147,151.25/439.26
  6. Step 6: Final answer
    x = 335.00

Related Problems

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.