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Finding the Fourth Proportional to 606.20, 909.15 and 167.43

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Solution

The fourth proportional to 606.20, 909.15 and 167.43 is: 251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.20 : 909.15 = 167.43 : x
  2. Step 2: Convert to fraction form
    606.20/909.15 = 167.43/x
  3. Step 3: Cross multiply
    606.20x = 909.15 × 167.43
  4. Step 4: Simplify right side
    606.20x = 152,218.98
  5. Step 5: Solve for x
    x = 152,218.98/606.20
  6. Step 6: Final answer
    x = 251.10

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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.