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Finding the Fourth Proportional to 1,227.16, 1,841.04 and 361.48

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Solution

The fourth proportional to 1,227.16, 1,841.04 and 361.48 is: 542.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.16 : 1,841.04 = 361.48 : x
  2. Step 2: Convert to fraction form
    1,227.16/1,841.04 = 361.48/x
  3. Step 3: Cross multiply
    1,227.16x = 1,841.04 × 361.48
  4. Step 4: Simplify right side
    1,227.16x = 665,499.14
  5. Step 5: Solve for x
    x = 665,499.14/1,227.16
  6. Step 6: Final answer
    x = 542.31

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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.