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Finding the Fourth Proportional to 606.50, 909.75 and 216.52

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Solution

The fourth proportional to 606.50, 909.75 and 216.52 is: 324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.50 : 909.75 = 216.52 : x
  2. Step 2: Convert to fraction form
    606.50/909.75 = 216.52/x
  3. Step 3: Cross multiply
    606.50x = 909.75 × 216.52
  4. Step 4: Simplify right side
    606.50x = 196,977.61
  5. Step 5: Solve for x
    x = 196,977.61/606.50
  6. Step 6: Final answer
    x = 324.78

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