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Finding the Fourth Proportional to 239,131.69, 330,016.65 and 131,701.69

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Solution

The fourth proportional to 239,131.69, 330,016.65 and 131,701.69 is: 181,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,131.69 : 330,016.65 = 131,701.69 : x
  2. Step 2: Convert to fraction form
    239,131.69/330,016.65 = 131,701.69/x
  3. Step 3: Cross multiply
    239,131.69x = 330,016.65 × 131,701.69
  4. Step 4: Simplify right side
    239,131.69x = 43,463,750,533.14
  5. Step 5: Solve for x
    x = 43,463,750,533.14/239,131.69
  6. Step 6: Final answer
    x = 181,756.55

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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.