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Finding the Fourth Proportional to 650.16, 896.90 and 388.02

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Solution

The fourth proportional to 650.16, 896.90 and 388.02 is: 535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.16 : 896.90 = 388.02 : x
  2. Step 2: Convert to fraction form
    650.16/896.90 = 388.02/x
  3. Step 3: Cross multiply
    650.16x = 896.90 × 388.02
  4. Step 4: Simplify right side
    650.16x = 348,015.14
  5. Step 5: Solve for x
    x = 348,015.14/650.16
  6. Step 6: Final answer
    x = 535.28

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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.