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Finding the Fourth Proportional to 952.18, 1,427.78 and 335.81

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Solution

The fourth proportional to 952.18, 1,427.78 and 335.81 is: 503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.18 : 1,427.78 = 335.81 : x
  2. Step 2: Convert to fraction form
    952.18/1,427.78 = 335.81/x
  3. Step 3: Cross multiply
    952.18x = 1,427.78 × 335.81
  4. Step 4: Simplify right side
    952.18x = 479,467.21
  5. Step 5: Solve for x
    x = 479,467.21/952.18
  6. Step 6: Final answer
    x = 503.55

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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.