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Finding the Fourth Proportional to 198,364.60, 297,590.64 and 65,239.48

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Solution

The fourth proportional to 198,364.60, 297,590.64 and 65,239.48 is: 97,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,364.60 : 297,590.64 = 65,239.48 : x
  2. Step 2: Convert to fraction form
    198,364.60/297,590.64 = 65,239.48/x
  3. Step 3: Cross multiply
    198,364.60x = 297,590.64 × 65,239.48
  4. Step 4: Simplify right side
    198,364.60x = 19,414,658,606.47
  5. Step 5: Solve for x
    x = 19,414,658,606.47/198,364.60
  6. Step 6: Final answer
    x = 97,873.61

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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.