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Finding the Fourth Proportional to 814.65, 1,222.06 and 237.53

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Solution

The fourth proportional to 814.65, 1,222.06 and 237.53 is: 356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.65 : 1,222.06 = 237.53 : x
  2. Step 2: Convert to fraction form
    814.65/1,222.06 = 237.53/x
  3. Step 3: Cross multiply
    814.65x = 1,222.06 × 237.53
  4. Step 4: Simplify right side
    814.65x = 290,269.80
  5. Step 5: Solve for x
    x = 290,269.80/814.65
  6. Step 6: Final answer
    x = 356.31

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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.