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Finding the Fourth Proportional to 508.54, 761.44 and 276.34

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Solution

The fourth proportional to 508.54, 761.44 and 276.34 is: 413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.54 : 761.44 = 276.34 : x
  2. Step 2: Convert to fraction form
    508.54/761.44 = 276.34/x
  3. Step 3: Cross multiply
    508.54x = 761.44 × 276.34
  4. Step 4: Simplify right side
    508.54x = 210,416.33
  5. Step 5: Solve for x
    x = 210,416.33/508.54
  6. Step 6: Final answer
    x = 413.77

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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.