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Finding the Fourth Proportional to 607.26, 838 and 331.26

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Solution

The fourth proportional to 607.26, 838 and 331.26 is: 457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.26 : 838 = 331.26 : x
  2. Step 2: Convert to fraction form
    607.26/838 = 331.26/x
  3. Step 3: Cross multiply
    607.26x = 838 × 331.26
  4. Step 4: Simplify right side
    607.26x = 277,595.88
  5. Step 5: Solve for x
    x = 277,595.88/607.26
  6. Step 6: Final answer
    x = 457.13

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Double scale
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1.5x scale

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.