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Finding the Fourth Proportional to 436.07, 601.88 and 261.38

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Solution

The fourth proportional to 436.07, 601.88 and 261.38 is: 360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.07 : 601.88 = 261.38 : x
  2. Step 2: Convert to fraction form
    436.07/601.88 = 261.38/x
  3. Step 3: Cross multiply
    436.07x = 601.88 × 261.38
  4. Step 4: Simplify right side
    436.07x = 157,315.08
  5. Step 5: Solve for x
    x = 157,315.08/436.07
  6. Step 6: Final answer
    x = 360.76

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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.