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Finding the Fourth Proportional to 606.63, 909.55 and 294.20

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Solution

The fourth proportional to 606.63, 909.55 and 294.20 is: 441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.63 : 909.55 = 294.20 : x
  2. Step 2: Convert to fraction form
    606.63/909.55 = 294.20/x
  3. Step 3: Cross multiply
    606.63x = 909.55 × 294.20
  4. Step 4: Simplify right side
    606.63x = 267,584.33
  5. Step 5: Solve for x
    x = 267,584.33/606.63
  6. Step 6: Final answer
    x = 441.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.