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Finding the Fourth Proportional to 436.26, 651.21 and 403.73

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Solution

The fourth proportional to 436.26, 651.21 and 403.73 is: 602.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.26 : 651.21 = 403.73 : x
  2. Step 2: Convert to fraction form
    436.26/651.21 = 403.73/x
  3. Step 3: Cross multiply
    436.26x = 651.21 × 403.73
  4. Step 4: Simplify right side
    436.26x = 262,909.76
  5. Step 5: Solve for x
    x = 262,909.76/436.26
  6. Step 6: Final answer
    x = 602.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.