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Finding the Fourth Proportional to 649.98, 974.06 and 325.02

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Solution

The fourth proportional to 649.98, 974.06 and 325.02 is: 487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.98 : 974.06 = 325.02 : x
  2. Step 2: Convert to fraction form
    649.98/974.06 = 325.02/x
  3. Step 3: Cross multiply
    649.98x = 974.06 × 325.02
  4. Step 4: Simplify right side
    649.98x = 316,588.98
  5. Step 5: Solve for x
    x = 316,588.98/649.98
  6. Step 6: Final answer
    x = 487.07

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.