Home / 239,215.10-330,121.06-131,784.40

Finding the Fourth Proportional to 239,215.10, 330,121.06 and 131,784.40

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Solution

The fourth proportional to 239,215.10, 330,121.06 and 131,784.40 is: 181,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,215.10 : 330,121.06 = 131,784.40 : x
  2. Step 2: Convert to fraction form
    239,215.10/330,121.06 = 131,784.40/x
  3. Step 3: Cross multiply
    239,215.10x = 330,121.06 × 131,784.40
  4. Step 4: Simplify right side
    239,215.10x = 43,504,805,819.46
  5. Step 5: Solve for x
    x = 43,504,805,819.46/239,215.10
  6. Step 6: Final answer
    x = 181,864.80

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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.