Home / 238,642.65-329,328.09-131,219.60

Finding the Fourth Proportional to 238,642.65, 329,328.09 and 131,219.60

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Solution

The fourth proportional to 238,642.65, 329,328.09 and 131,219.60 is: 181,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,642.65 : 329,328.09 = 131,219.60 : x
  2. Step 2: Convert to fraction form
    238,642.65/329,328.09 = 131,219.60/x
  3. Step 3: Cross multiply
    238,642.65x = 329,328.09 × 131,219.60
  4. Step 4: Simplify right side
    238,642.65x = 43,214,300,238.56
  5. Step 5: Solve for x
    x = 43,214,300,238.56/238,642.65
  6. Step 6: Final answer
    x = 181,083.73

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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.