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Finding the Fourth Proportional to 437.82, 657 and 275.82

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Solution

The fourth proportional to 437.82, 657 and 275.82 is: 413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.82 : 657 = 275.82 : x
  2. Step 2: Convert to fraction form
    437.82/657 = 275.82/x
  3. Step 3: Cross multiply
    437.82x = 657 × 275.82
  4. Step 4: Simplify right side
    437.82x = 181,213.74
  5. Step 5: Solve for x
    x = 181,213.74/437.82
  6. Step 6: Final answer
    x = 413.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.