Home / 239,255.48-330,180.05-137,299.59

Finding the Fourth Proportional to 239,255.48, 330,180.05 and 137,299.59

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Solution

The fourth proportional to 239,255.48, 330,180.05 and 137,299.59 is: 189,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,255.48 : 330,180.05 = 137,299.59 : x
  2. Step 2: Convert to fraction form
    239,255.48/330,180.05 = 137,299.59/x
  3. Step 3: Cross multiply
    239,255.48x = 330,180.05 × 137,299.59
  4. Step 4: Simplify right side
    239,255.48x = 45,333,586,042.86
  5. Step 5: Solve for x
    x = 45,333,586,042.86/239,255.48
  6. Step 6: Final answer
    x = 189,477.73

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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.