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Finding the Fourth Proportional to 605.50, 835.80 and 372.63

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Solution

The fourth proportional to 605.50, 835.80 and 372.63 is: 514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.50 : 835.80 = 372.63 : x
  2. Step 2: Convert to fraction form
    605.50/835.80 = 372.63/x
  3. Step 3: Cross multiply
    605.50x = 835.80 × 372.63
  4. Step 4: Simplify right side
    605.50x = 311,444.15
  5. Step 5: Solve for x
    x = 311,444.15/605.50
  6. Step 6: Final answer
    x = 514.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.