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Finding the Fourth Proportional to 952.79, 1,429.35 and 336.85

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Solution

The fourth proportional to 952.79, 1,429.35 and 336.85 is: 505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.79 : 1,429.35 = 336.85 : x
  2. Step 2: Convert to fraction form
    952.79/1,429.35 = 336.85/x
  3. Step 3: Cross multiply
    952.79x = 1,429.35 × 336.85
  4. Step 4: Simplify right side
    952.79x = 481,472.13
  5. Step 5: Solve for x
    x = 481,472.13/952.79
  6. Step 6: Final answer
    x = 505.33

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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.