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Finding the Fourth Proportional to 239,299.98, 330,236.19 and 131,873.87

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Solution

The fourth proportional to 239,299.98, 330,236.19 and 131,873.87 is: 181,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,299.98 : 330,236.19 = 131,873.87 : x
  2. Step 2: Convert to fraction form
    239,299.98/330,236.19 = 131,873.87/x
  3. Step 3: Cross multiply
    239,299.98x = 330,236.19 × 131,873.87
  4. Step 4: Simplify right side
    239,299.98x = 43,549,522,738.17
  5. Step 5: Solve for x
    x = 43,549,522,738.17/239,299.98
  6. Step 6: Final answer
    x = 181,987.16

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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.