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Finding the Fourth Proportional to 436.15, 602.17 and 270.61

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Solution

The fourth proportional to 436.15, 602.17 and 270.61 is: 373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.15 : 602.17 = 270.61 : x
  2. Step 2: Convert to fraction form
    436.15/602.17 = 270.61/x
  3. Step 3: Cross multiply
    436.15x = 602.17 × 270.61
  4. Step 4: Simplify right side
    436.15x = 162,951.04
  5. Step 5: Solve for x
    x = 162,951.04/436.15
  6. Step 6: Final answer
    x = 373.61

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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.