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Finding the Fourth Proportional to 649.25, 973.88 and 216.44

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Solution

The fourth proportional to 649.25, 973.88 and 216.44 is: 324.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.25 : 973.88 = 216.44 : x
  2. Step 2: Convert to fraction form
    649.25/973.88 = 216.44/x
  3. Step 3: Cross multiply
    649.25x = 973.88 × 216.44
  4. Step 4: Simplify right side
    649.25x = 210,785.51
  5. Step 5: Solve for x
    x = 210,785.51/649.25
  6. Step 6: Final answer
    x = 324.66

Related Problems

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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.