Home / 266,769.70-368,137-145,910.64

Finding the Fourth Proportional to 266,769.70, 368,137 and 145,910.64

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Solution

The fourth proportional to 266,769.70, 368,137 and 145,910.64 is: 201,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,769.70 : 368,137 = 145,910.64 : x
  2. Step 2: Convert to fraction form
    266,769.70/368,137 = 145,910.64/x
  3. Step 3: Cross multiply
    266,769.70x = 368,137 × 145,910.64
  4. Step 4: Simplify right side
    266,769.70x = 53,715,105,277.68
  5. Step 5: Solve for x
    x = 53,715,105,277.68/266,769.70
  6. Step 6: Final answer
    x = 201,353.85

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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.