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Finding the Fourth Proportional to 497, 745.62 and 188.84

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Solution

The fourth proportional to 497, 745.62 and 188.84 is: 283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    497 : 745.62 = 188.84 : x
  2. Step 2: Convert to fraction form
    497/745.62 = 188.84/x
  3. Step 3: Cross multiply
    497x = 745.62 × 188.84
  4. Step 4: Simplify right side
    497x = 140,802.88
  5. Step 5: Solve for x
    x = 140,802.88/497
  6. Step 6: Final answer
    x = 283.31

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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.