Home / 358,138.23-494,222.70-196,989.75

Finding the Fourth Proportional to 358,138.23, 494,222.70 and 196,989.75

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Solution

The fourth proportional to 358,138.23, 494,222.70 and 196,989.75 is: 271,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,138.23 : 494,222.70 = 196,989.75 : x
  2. Step 2: Convert to fraction form
    358,138.23/494,222.70 = 196,989.75/x
  3. Step 3: Cross multiply
    358,138.23x = 494,222.70 × 196,989.75
  4. Step 4: Simplify right side
    358,138.23x = 97,356,806,117.33
  5. Step 5: Solve for x
    x = 97,356,806,117.33/358,138.23
  6. Step 6: Final answer
    x = 271,841.42

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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.