Home / 218,789.24-301,929.12-123,299.36

Finding the Fourth Proportional to 218,789.24, 301,929.12 and 123,299.36

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Solution

The fourth proportional to 218,789.24, 301,929.12 and 123,299.36 is: 170,153.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,789.24 : 301,929.12 = 123,299.36 : x
  2. Step 2: Convert to fraction form
    218,789.24/301,929.12 = 123,299.36/x
  3. Step 3: Cross multiply
    218,789.24x = 301,929.12 × 123,299.36
  4. Step 4: Simplify right side
    218,789.24x = 37,227,665,751.72
  5. Step 5: Solve for x
    x = 37,227,665,751.72/218,789.24
  6. Step 6: Final answer
    x = 170,153.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.