Home / 386,107.82-579,242.37-119,861.42

Finding the Fourth Proportional to 386,107.82, 579,242.37 and 119,861.42

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Solution

The fourth proportional to 386,107.82, 579,242.37 and 119,861.42 is: 179,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,107.82 : 579,242.37 = 119,861.42 : x
  2. Step 2: Convert to fraction form
    386,107.82/579,242.37 = 119,861.42/x
  3. Step 3: Cross multiply
    386,107.82x = 579,242.37 × 119,861.42
  4. Step 4: Simplify right side
    386,107.82x = 69,428,812,992.37
  5. Step 5: Solve for x
    x = 69,428,812,992.37/386,107.82
  6. Step 6: Final answer
    x = 179,817.16

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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.