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Finding the Fourth Proportional to 331,682.70, 497,232.45 and 198,615.90

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Solution

The fourth proportional to 331,682.70, 497,232.45 and 198,615.90 is: 297,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,682.70 : 497,232.45 = 198,615.90 : x
  2. Step 2: Convert to fraction form
    331,682.70/497,232.45 = 198,615.90/x
  3. Step 3: Cross multiply
    331,682.70x = 497,232.45 × 198,615.90
  4. Step 4: Simplify right side
    331,682.70x = 98,758,270,565.96
  5. Step 5: Solve for x
    x = 98,758,270,565.96/331,682.70
  6. Step 6: Final answer
    x = 297,749.24

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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.