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Finding the Fourth Proportional to 279,469.01, 419,210.39 and 101,975.97

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Solution

The fourth proportional to 279,469.01, 419,210.39 and 101,975.97 is: 152,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,469.01 : 419,210.39 = 101,975.97 : x
  2. Step 2: Convert to fraction form
    279,469.01/419,210.39 = 101,975.97/x
  3. Step 3: Cross multiply
    279,469.01x = 419,210.39 × 101,975.97
  4. Step 4: Simplify right side
    279,469.01x = 42,749,385,644.45
  5. Step 5: Solve for x
    x = 42,749,385,644.45/279,469.01
  6. Step 6: Final answer
    x = 152,966.46

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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.