Home / 378,133.25-567,003.04-111,857.79

Finding the Fourth Proportional to 378,133.25, 567,003.04 and 111,857.79

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Solution

The fourth proportional to 378,133.25, 567,003.04 and 111,857.79 is: 167,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,133.25 : 567,003.04 = 111,857.79 : x
  2. Step 2: Convert to fraction form
    378,133.25/567,003.04 = 111,857.79/x
  3. Step 3: Cross multiply
    378,133.25x = 567,003.04 × 111,857.79
  4. Step 4: Simplify right side
    378,133.25x = 63,423,708,824.30
  5. Step 5: Solve for x
    x = 63,423,708,824.30/378,133.25
  6. Step 6: Final answer
    x = 167,728.47

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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.