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Finding the Fourth Proportional to 214,728.33, 321,992.46 and 79,698.36

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Solution

The fourth proportional to 214,728.33, 321,992.46 and 79,698.36 is: 119,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,728.33 : 321,992.46 = 79,698.36 : x
  2. Step 2: Convert to fraction form
    214,728.33/321,992.46 = 79,698.36/x
  3. Step 3: Cross multiply
    214,728.33x = 321,992.46 × 79,698.36
  4. Step 4: Simplify right side
    214,728.33x = 25,662,270,994.37
  5. Step 5: Solve for x
    x = 25,662,270,994.37/214,728.33
  6. Step 6: Final answer
    x = 119,510.41

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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.