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Finding the Fourth Proportional to 992.02, 1,486.98 and 333.27

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Solution

The fourth proportional to 992.02, 1,486.98 and 333.27 is: 499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.02 : 1,486.98 = 333.27 : x
  2. Step 2: Convert to fraction form
    992.02/1,486.98 = 333.27/x
  3. Step 3: Cross multiply
    992.02x = 1,486.98 × 333.27
  4. Step 4: Simplify right side
    992.02x = 495,565.82
  5. Step 5: Solve for x
    x = 495,565.82/992.02
  6. Step 6: Final answer
    x = 499.55

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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.