Home / 260,749.92-391,136-110,969.76

Finding the Fourth Proportional to 260,749.92, 391,136 and 110,969.76

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Solution

The fourth proportional to 260,749.92, 391,136 and 110,969.76 is: 166,459.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,749.92 : 391,136 = 110,969.76 : x
  2. Step 2: Convert to fraction form
    260,749.92/391,136 = 110,969.76/x
  3. Step 3: Cross multiply
    260,749.92x = 391,136 × 110,969.76
  4. Step 4: Simplify right side
    260,749.92x = 43,404,268,047.36
  5. Step 5: Solve for x
    x = 43,404,268,047.36/260,749.92
  6. Step 6: Final answer
    x = 166,459.37

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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.