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Finding the Fourth Proportional to 259,732.49, 389,609.85 and 101,995.07

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Solution

The fourth proportional to 259,732.49, 389,609.85 and 101,995.07 is: 152,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,732.49 : 389,609.85 = 101,995.07 : x
  2. Step 2: Convert to fraction form
    259,732.49/389,609.85 = 101,995.07/x
  3. Step 3: Cross multiply
    259,732.49x = 389,609.85 × 101,995.07
  4. Step 4: Simplify right side
    259,732.49x = 39,738,283,923.44
  5. Step 5: Solve for x
    x = 39,738,283,923.44/259,732.49
  6. Step 6: Final answer
    x = 152,996.97

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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.