Home / 378,623.68-567,769.76-141,800.28

Finding the Fourth Proportional to 378,623.68, 567,769.76 and 141,800.28

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Solution

The fourth proportional to 378,623.68, 567,769.76 and 141,800.28 is: 212,638.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,623.68 : 567,769.76 = 141,800.28 : x
  2. Step 2: Convert to fraction form
    378,623.68/567,769.76 = 141,800.28/x
  3. Step 3: Cross multiply
    378,623.68x = 567,769.76 × 141,800.28
  4. Step 4: Simplify right side
    378,623.68x = 80,509,910,943.53
  5. Step 5: Solve for x
    x = 80,509,910,943.53/378,623.68
  6. Step 6: Final answer
    x = 212,638.34

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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.