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Finding the Fourth Proportional to 497.66, 745.88 and 254.05

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Solution

The fourth proportional to 497.66, 745.88 and 254.05 is: 380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.66 : 745.88 = 254.05 : x
  2. Step 2: Convert to fraction form
    497.66/745.88 = 254.05/x
  3. Step 3: Cross multiply
    497.66x = 745.88 × 254.05
  4. Step 4: Simplify right side
    497.66x = 189,491.87
  5. Step 5: Solve for x
    x = 189,491.87/497.66
  6. Step 6: Final answer
    x = 380.77

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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.