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Finding the Fourth Proportional to 260,914.60, 391,536.60 and 111,154.96

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Solution

The fourth proportional to 260,914.60, 391,536.60 and 111,154.96 is: 166,802.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,914.60 : 391,536.60 = 111,154.96 : x
  2. Step 2: Convert to fraction form
    260,914.60/391,536.60 = 111,154.96/x
  3. Step 3: Cross multiply
    260,914.60x = 391,536.60 × 111,154.96
  4. Step 4: Simplify right side
    260,914.60x = 43,521,235,111.54
  5. Step 5: Solve for x
    x = 43,521,235,111.54/260,914.60
  6. Step 6: Final answer
    x = 166,802.61

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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.