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Finding the Fourth Proportional to 260,933, 391,399.50 and 63,941

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Solution

The fourth proportional to 260,933, 391,399.50 and 63,941 is: 95,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,933 : 391,399.50 = 63,941 : x
  2. Step 2: Convert to fraction form
    260,933/391,399.50 = 63,941/x
  3. Step 3: Cross multiply
    260,933x = 391,399.50 × 63,941
  4. Step 4: Simplify right side
    260,933x = 25,026,475,429.50
  5. Step 5: Solve for x
    x = 25,026,475,429.50/260,933
  6. Step 6: Final answer
    x = 95,911.50

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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.