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Finding the Fourth Proportional to 239,663.70, 330,855.75 and 149,048.85

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Solution

The fourth proportional to 239,663.70, 330,855.75 and 149,048.85 is: 205,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,663.70 : 330,855.75 = 149,048.85 : x
  2. Step 2: Convert to fraction form
    239,663.70/330,855.75 = 149,048.85/x
  3. Step 3: Cross multiply
    239,663.70x = 330,855.75 × 149,048.85
  4. Step 4: Simplify right side
    239,663.70x = 49,313,669,053.39
  5. Step 5: Solve for x
    x = 49,313,669,053.39/239,663.70
  6. Step 6: Final answer
    x = 205,761.94

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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.