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Finding the Fourth Proportional to 299,170.79, 412,855.70 and 163,205.29

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Solution

The fourth proportional to 299,170.79, 412,855.70 and 163,205.29 is: 225,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,170.79 : 412,855.70 = 163,205.29 : x
  2. Step 2: Convert to fraction form
    299,170.79/412,855.70 = 163,205.29/x
  3. Step 3: Cross multiply
    299,170.79x = 412,855.70 × 163,205.29
  4. Step 4: Simplify right side
    299,170.79x = 67,380,234,246.65
  5. Step 5: Solve for x
    x = 67,380,234,246.65/299,170.79
  6. Step 6: Final answer
    x = 225,223.31

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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.