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Finding the Fourth Proportional to 239,140.88, 330,029.39 and 131,710.88

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Solution

The fourth proportional to 239,140.88, 330,029.39 and 131,710.88 is: 181,769.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,140.88 : 330,029.39 = 131,710.88 : x
  2. Step 2: Convert to fraction form
    239,140.88/330,029.39 = 131,710.88/x
  3. Step 3: Cross multiply
    239,140.88x = 330,029.39 × 131,710.88
  4. Step 4: Simplify right side
    239,140.88x = 43,468,459,074.06
  5. Step 5: Solve for x
    x = 43,468,459,074.06/239,140.88
  6. Step 6: Final answer
    x = 181,769.26

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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.