Home / 215,905.68-324,139.16-166,020.81

Finding the Fourth Proportional to 215,905.68, 324,139.16 and 166,020.81

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Solution

The fourth proportional to 215,905.68, 324,139.16 and 166,020.81 is: 249,247.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,905.68 : 324,139.16 = 166,020.81 : x
  2. Step 2: Convert to fraction form
    215,905.68/324,139.16 = 166,020.81/x
  3. Step 3: Cross multiply
    215,905.68x = 324,139.16 × 166,020.81
  4. Step 4: Simplify right side
    215,905.68x = 53,813,845,500.62
  5. Step 5: Solve for x
    x = 53,813,845,500.62/215,905.68
  6. Step 6: Final answer
    x = 249,247.01

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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.