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Finding the Fourth Proportional to 436.56, 600.06 and 391.92

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Solution

The fourth proportional to 436.56, 600.06 and 391.92 is: 538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.56 : 600.06 = 391.92 : x
  2. Step 2: Convert to fraction form
    436.56/600.06 = 391.92/x
  3. Step 3: Cross multiply
    436.56x = 600.06 × 391.92
  4. Step 4: Simplify right side
    436.56x = 235,175.52
  5. Step 5: Solve for x
    x = 235,175.52/436.56
  6. Step 6: Final answer
    x = 538.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.