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Finding the Fourth Proportional to 239,759.96, 330,879.54 and 137,818.52

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Solution

The fourth proportional to 239,759.96, 330,879.54 and 137,818.52 is: 190,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,759.96 : 330,879.54 = 137,818.52 : x
  2. Step 2: Convert to fraction form
    239,759.96/330,879.54 = 137,818.52/x
  3. Step 3: Cross multiply
    239,759.96x = 330,879.54 × 137,818.52
  4. Step 4: Simplify right side
    239,759.96x = 45,601,328,501.08
  5. Step 5: Solve for x
    x = 45,601,328,501.08/239,759.96
  6. Step 6: Final answer
    x = 190,195.76

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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.