Home / 239,107.28-329,952.84-143,618

Finding the Fourth Proportional to 239,107.28, 329,952.84 and 143,618

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Solution

The fourth proportional to 239,107.28, 329,952.84 and 143,618 is: 198,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,107.28 : 329,952.84 = 143,618 : x
  2. Step 2: Convert to fraction form
    239,107.28/329,952.84 = 143,618/x
  3. Step 3: Cross multiply
    239,107.28x = 329,952.84 × 143,618
  4. Step 4: Simplify right side
    239,107.28x = 47,387,166,975.12
  5. Step 5: Solve for x
    x = 47,387,166,975.12/239,107.28
  6. Step 6: Final answer
    x = 198,183.71

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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.