Home / 239,290.71-330,223.39-131,864.58

Finding the Fourth Proportional to 239,290.71, 330,223.39 and 131,864.58

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Solution

The fourth proportional to 239,290.71, 330,223.39 and 131,864.58 is: 181,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,290.71 : 330,223.39 = 131,864.58 : x
  2. Step 2: Convert to fraction form
    239,290.71/330,223.39 = 131,864.58/x
  3. Step 3: Cross multiply
    239,290.71x = 330,223.39 × 131,864.58
  4. Step 4: Simplify right side
    239,290.71x = 43,544,769,908.07
  5. Step 5: Solve for x
    x = 43,544,769,908.07/239,290.71
  6. Step 6: Final answer
    x = 181,974.35

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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.