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Finding the Fourth Proportional to 341,805.40, 512,797.70 and 131,450.20

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Solution

The fourth proportional to 341,805.40, 512,797.70 and 131,450.20 is: 197,209.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,805.40 : 512,797.70 = 131,450.20 : x
  2. Step 2: Convert to fraction form
    341,805.40/512,797.70 = 131,450.20/x
  3. Step 3: Cross multiply
    341,805.40x = 512,797.70 × 131,450.20
  4. Step 4: Simplify right side
    341,805.40x = 67,407,360,224.54
  5. Step 5: Solve for x
    x = 67,407,360,224.54/341,805.40
  6. Step 6: Final answer
    x = 197,209.76

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1.5x scale

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.