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Finding the Fourth Proportional to 504.11, 755.15 and 298.77

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Solution

The fourth proportional to 504.11, 755.15 and 298.77 is: 447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.11 : 755.15 = 298.77 : x
  2. Step 2: Convert to fraction form
    504.11/755.15 = 298.77/x
  3. Step 3: Cross multiply
    504.11x = 755.15 × 298.77
  4. Step 4: Simplify right side
    504.11x = 225,614.67
  5. Step 5: Solve for x
    x = 225,614.67/504.11
  6. Step 6: Final answer
    x = 447.55

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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.