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Finding the Fourth Proportional to 606.85, 837.28 and 344.86

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Solution

The fourth proportional to 606.85, 837.28 and 344.86 is: 475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.85 : 837.28 = 344.86 : x
  2. Step 2: Convert to fraction form
    606.85/837.28 = 344.86/x
  3. Step 3: Cross multiply
    606.85x = 837.28 × 344.86
  4. Step 4: Simplify right side
    606.85x = 288,744.38
  5. Step 5: Solve for x
    x = 288,744.38/606.85
  6. Step 6: Final answer
    x = 475.81

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.