Home / 199,015.26-298,639.53-142,794.78

Finding the Fourth Proportional to 199,015.26, 298,639.53 and 142,794.78

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Solution

The fourth proportional to 199,015.26, 298,639.53 and 142,794.78 is: 214,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,015.26 : 298,639.53 = 142,794.78 : x
  2. Step 2: Convert to fraction form
    199,015.26/298,639.53 = 142,794.78/x
  3. Step 3: Cross multiply
    199,015.26x = 298,639.53 × 142,794.78
  4. Step 4: Simplify right side
    199,015.26x = 42,644,165,985.65
  5. Step 5: Solve for x
    x = 42,644,165,985.65/199,015.26
  6. Step 6: Final answer
    x = 214,275.86

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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.