Home / 358,138.65-494,221.02-196,993.70

Finding the Fourth Proportional to 358,138.65, 494,221.02 and 196,993.70

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Solution

The fourth proportional to 358,138.65, 494,221.02 and 196,993.70 is: 271,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,138.65 : 494,221.02 = 196,993.70 : x
  2. Step 2: Convert to fraction form
    358,138.65/494,221.02 = 196,993.70/x
  3. Step 3: Cross multiply
    358,138.65x = 494,221.02 × 196,993.70
  4. Step 4: Simplify right side
    358,138.65x = 97,358,424,876.47
  5. Step 5: Solve for x
    x = 97,358,424,876.47/358,138.65
  6. Step 6: Final answer
    x = 271,845.62

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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.