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Finding the Fourth Proportional to 983.32, 1,473.90 and 333.16

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Solution

The fourth proportional to 983.32, 1,473.90 and 333.16 is: 499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    983.32 : 1,473.90 = 333.16 : x
  2. Step 2: Convert to fraction form
    983.32/1,473.90 = 333.16/x
  3. Step 3: Cross multiply
    983.32x = 1,473.90 × 333.16
  4. Step 4: Simplify right side
    983.32x = 491,044.52
  5. Step 5: Solve for x
    x = 491,044.52/983.32
  6. Step 6: Final answer
    x = 499.37

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Double scale
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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.