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Finding the Fourth Proportional to 324,608.10, 486,912.15 and 102,992.10

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Solution

The fourth proportional to 324,608.10, 486,912.15 and 102,992.10 is: 154,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,608.10 : 486,912.15 = 102,992.10 : x
  2. Step 2: Convert to fraction form
    324,608.10/486,912.15 = 102,992.10/x
  3. Step 3: Cross multiply
    324,608.10x = 486,912.15 × 102,992.10
  4. Step 4: Simplify right side
    324,608.10x = 50,148,104,844.02
  5. Step 5: Solve for x
    x = 50,148,104,844.02/324,608.10
  6. Step 6: Final answer
    x = 154,488.15

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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.