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Finding the Fourth Proportional to 598.10, 825.26 and 388.26

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Solution

The fourth proportional to 598.10, 825.26 and 388.26 is: 535.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.10 : 825.26 = 388.26 : x
  2. Step 2: Convert to fraction form
    598.10/825.26 = 388.26/x
  3. Step 3: Cross multiply
    598.10x = 825.26 × 388.26
  4. Step 4: Simplify right side
    598.10x = 320,409.38
  5. Step 5: Solve for x
    x = 320,409.38/598.10
  6. Step 6: Final answer
    x = 535.72

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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.