Home / 201,697.75-278,419.04-158,564.71

Finding the Fourth Proportional to 201,697.75, 278,419.04 and 158,564.71

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Solution

The fourth proportional to 201,697.75, 278,419.04 and 158,564.71 is: 218,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,697.75 : 278,419.04 = 158,564.71 : x
  2. Step 2: Convert to fraction form
    201,697.75/278,419.04 = 158,564.71/x
  3. Step 3: Cross multiply
    201,697.75x = 278,419.04 × 158,564.71
  4. Step 4: Simplify right side
    201,697.75x = 44,147,434,732.49
  5. Step 5: Solve for x
    x = 44,147,434,732.49/201,697.75
  6. Step 6: Final answer
    x = 218,879.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.