Home / 218,977.20-302,188.41-118,375.20

Finding the Fourth Proportional to 218,977.20, 302,188.41 and 118,375.20

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Solution

The fourth proportional to 218,977.20, 302,188.41 and 118,375.20 is: 163,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,977.20 : 302,188.41 = 118,375.20 : x
  2. Step 2: Convert to fraction form
    218,977.20/302,188.41 = 118,375.20/x
  3. Step 3: Cross multiply
    218,977.20x = 302,188.41 × 118,375.20
  4. Step 4: Simplify right side
    218,977.20x = 35,771,613,471.43
  5. Step 5: Solve for x
    x = 35,771,613,471.43/218,977.20
  6. Step 6: Final answer
    x = 163,357.71

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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.