Home / 378,769.37-568,231.81-112,506.17

Finding the Fourth Proportional to 378,769.37, 568,231.81 and 112,506.17

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Solution

The fourth proportional to 378,769.37, 568,231.81 and 112,506.17 is: 168,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,769.37 : 568,231.81 = 112,506.17 : x
  2. Step 2: Convert to fraction form
    378,769.37/568,231.81 = 112,506.17/x
  3. Step 3: Cross multiply
    378,769.37x = 568,231.81 × 112,506.17
  4. Step 4: Simplify right side
    378,769.37x = 63,929,581,492.84
  5. Step 5: Solve for x
    x = 63,929,581,492.84/378,769.37
  6. Step 6: Final answer
    x = 168,782.34

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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.