Home / 358,138.15-494,220.34-196,993.20

Finding the Fourth Proportional to 358,138.15, 494,220.34 and 196,993.20

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Solution

The fourth proportional to 358,138.15, 494,220.34 and 196,993.20 is: 271,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,138.15 : 494,220.34 = 196,993.20 : x
  2. Step 2: Convert to fraction form
    358,138.15/494,220.34 = 196,993.20/x
  3. Step 3: Cross multiply
    358,138.15x = 494,220.34 × 196,993.20
  4. Step 4: Simplify right side
    358,138.15x = 97,358,046,281.69
  5. Step 5: Solve for x
    x = 97,358,046,281.69/358,138.15
  6. Step 6: Final answer
    x = 271,844.95

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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.