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Finding the Fourth Proportional to 435.88, 601.54 and 261.32

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Solution

The fourth proportional to 435.88, 601.54 and 261.32 is: 360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.88 : 601.54 = 261.32 : x
  2. Step 2: Convert to fraction form
    435.88/601.54 = 261.32/x
  3. Step 3: Cross multiply
    435.88x = 601.54 × 261.32
  4. Step 4: Simplify right side
    435.88x = 157,194.43
  5. Step 5: Solve for x
    x = 157,194.43/435.88
  6. Step 6: Final answer
    x = 360.64

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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.