Home / 208,419.28-312,301.08-161,149.84

Finding the Fourth Proportional to 208,419.28, 312,301.08 and 161,149.84

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Solution

The fourth proportional to 208,419.28, 312,301.08 and 161,149.84 is: 241,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,419.28 : 312,301.08 = 161,149.84 : x
  2. Step 2: Convert to fraction form
    208,419.28/312,301.08 = 161,149.84/x
  3. Step 3: Cross multiply
    208,419.28x = 312,301.08 × 161,149.84
  4. Step 4: Simplify right side
    208,419.28x = 50,327,269,073.83
  5. Step 5: Solve for x
    x = 50,327,269,073.83/208,419.28
  6. Step 6: Final answer
    x = 241,471.27

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1.5x scale

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.