Home / 378,233.70-566,986.05-218,145.30

Finding the Fourth Proportional to 378,233.70, 566,986.05 and 218,145.30

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Solution

The fourth proportional to 378,233.70, 566,986.05 and 218,145.30 is: 327,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,233.70 : 566,986.05 = 218,145.30 : x
  2. Step 2: Convert to fraction form
    378,233.70/566,986.05 = 218,145.30/x
  3. Step 3: Cross multiply
    378,233.70x = 566,986.05 × 218,145.30
  4. Step 4: Simplify right side
    378,233.70x = 123,685,341,973.07
  5. Step 5: Solve for x
    x = 123,685,341,973.07/378,233.70
  6. Step 6: Final answer
    x = 327,007.73

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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.