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Finding the Fourth Proportional to 1,216.02, 1,824.36 and 350.34

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Solution

The fourth proportional to 1,216.02, 1,824.36 and 350.34 is: 525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.02 : 1,824.36 = 350.34 : x
  2. Step 2: Convert to fraction form
    1,216.02/1,824.36 = 350.34/x
  3. Step 3: Cross multiply
    1,216.02x = 1,824.36 × 350.34
  4. Step 4: Simplify right side
    1,216.02x = 639,146.28
  5. Step 5: Solve for x
    x = 639,146.28/1,216.02
  6. Step 6: Final answer
    x = 525.61

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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.