Home / 207,837.30-311,318.55-172,845.30

Finding the Fourth Proportional to 207,837.30, 311,318.55 and 172,845.30

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Solution

The fourth proportional to 207,837.30, 311,318.55 and 172,845.30 is: 258,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,837.30 : 311,318.55 = 172,845.30 : x
  2. Step 2: Convert to fraction form
    207,837.30/311,318.55 = 172,845.30/x
  3. Step 3: Cross multiply
    207,837.30x = 311,318.55 × 172,845.30
  4. Step 4: Simplify right side
    207,837.30x = 53,809,948,170.32
  5. Step 5: Solve for x
    x = 53,809,948,170.32/207,837.30
  6. Step 6: Final answer
    x = 258,904.19

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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.