Home / 380,789.92-571,189.74-144,069.04

Finding the Fourth Proportional to 380,789.92, 571,189.74 and 144,069.04

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Solution

The fourth proportional to 380,789.92, 571,189.74 and 144,069.04 is: 216,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,789.92 : 571,189.74 = 144,069.04 : x
  2. Step 2: Convert to fraction form
    380,789.92/571,189.74 = 144,069.04/x
  3. Step 3: Cross multiply
    380,789.92x = 571,189.74 × 144,069.04
  4. Step 4: Simplify right side
    380,789.92x = 82,290,757,499.65
  5. Step 5: Solve for x
    x = 82,290,757,499.65/380,789.92
  6. Step 6: Final answer
    x = 216,105.40

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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.