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Finding the Fourth Proportional to 497.18, 745.25 and 188.84

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Solution

The fourth proportional to 497.18, 745.25 and 188.84 is: 283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.18 : 745.25 = 188.84 : x
  2. Step 2: Convert to fraction form
    497.18/745.25 = 188.84/x
  3. Step 3: Cross multiply
    497.18x = 745.25 × 188.84
  4. Step 4: Simplify right side
    497.18x = 140,733.01
  5. Step 5: Solve for x
    x = 140,733.01/497.18
  6. Step 6: Final answer
    x = 283.06

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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.