Home / 239,778.43-330,905.25-137,836.89

Finding the Fourth Proportional to 239,778.43, 330,905.25 and 137,836.89

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Solution

The fourth proportional to 239,778.43, 330,905.25 and 137,836.89 is: 190,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,778.43 : 330,905.25 = 137,836.89 : x
  2. Step 2: Convert to fraction form
    239,778.43/330,905.25 = 137,836.89/x
  3. Step 3: Cross multiply
    239,778.43x = 330,905.25 × 137,836.89
  4. Step 4: Simplify right side
    239,778.43x = 45,610,950,544.67
  5. Step 5: Solve for x
    x = 45,610,950,544.67/239,778.43
  6. Step 6: Final answer
    x = 190,221.24

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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.