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Finding the Fourth Proportional to 1,236.65, 1,706.18 and 882.27

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Solution

The fourth proportional to 1,236.65, 1,706.18 and 882.27 is: 1,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.65 : 1,706.18 = 882.27 : x
  2. Step 2: Convert to fraction form
    1,236.65/1,706.18 = 882.27/x
  3. Step 3: Cross multiply
    1,236.65x = 1,706.18 × 882.27
  4. Step 4: Simplify right side
    1,236.65x = 1,505,307.02
  5. Step 5: Solve for x
    x = 1,505,307.02/1,236.65
  6. Step 6: Final answer
    x = 1,217.25

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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.