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Finding the Fourth Proportional to 650.13, 896.97 and 388.02

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Solution

The fourth proportional to 650.13, 896.97 and 388.02 is: 535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.13 : 896.97 = 388.02 : x
  2. Step 2: Convert to fraction form
    650.13/896.97 = 388.02/x
  3. Step 3: Cross multiply
    650.13x = 896.97 × 388.02
  4. Step 4: Simplify right side
    650.13x = 348,042.30
  5. Step 5: Solve for x
    x = 348,042.30/650.13
  6. Step 6: Final answer
    x = 535.34

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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.