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Finding the Fourth Proportional to 436, 600.81 and 317.74

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Solution

The fourth proportional to 436, 600.81 and 317.74 is: 437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    436 : 600.81 = 317.74 : x
  2. Step 2: Convert to fraction form
    436/600.81 = 317.74/x
  3. Step 3: Cross multiply
    436x = 600.81 × 317.74
  4. Step 4: Simplify right side
    436x = 190,901.37
  5. Step 5: Solve for x
    x = 190,901.37/436
  6. Step 6: Final answer
    x = 437.85

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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.