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Finding the Fourth Proportional to 937.23, 1,405.41 and 351.99

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Solution

The fourth proportional to 937.23, 1,405.41 and 351.99 is: 527.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.23 : 1,405.41 = 351.99 : x
  2. Step 2: Convert to fraction form
    937.23/1,405.41 = 351.99/x
  3. Step 3: Cross multiply
    937.23x = 1,405.41 × 351.99
  4. Step 4: Simplify right side
    937.23x = 494,690.27
  5. Step 5: Solve for x
    x = 494,690.27/937.23
  6. Step 6: Final answer
    x = 527.82

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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.