Home / 218,618.15-327,186.56-134,431.64

Finding the Fourth Proportional to 218,618.15, 327,186.56 and 134,431.64

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Solution

The fourth proportional to 218,618.15, 327,186.56 and 134,431.64 is: 201,192.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,618.15 : 327,186.56 = 134,431.64 : x
  2. Step 2: Convert to fraction form
    218,618.15/327,186.56 = 134,431.64/x
  3. Step 3: Cross multiply
    218,618.15x = 327,186.56 × 134,431.64
  4. Step 4: Simplify right side
    218,618.15x = 43,984,225,992.57
  5. Step 5: Solve for x
    x = 43,984,225,992.57/218,618.15
  6. Step 6: Final answer
    x = 201,192.01

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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.