Home / 238,821.91-329,574.22-131,389.63

Finding the Fourth Proportional to 238,821.91, 329,574.22 and 131,389.63

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Solution

The fourth proportional to 238,821.91, 329,574.22 and 131,389.63 is: 181,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,821.91 : 329,574.22 = 131,389.63 : x
  2. Step 2: Convert to fraction form
    238,821.91/329,574.22 = 131,389.63/x
  3. Step 3: Cross multiply
    238,821.91x = 329,574.22 × 131,389.63
  4. Step 4: Simplify right side
    238,821.91x = 43,302,635,647.27
  5. Step 5: Solve for x
    x = 43,302,635,647.27/238,821.91
  6. Step 6: Final answer
    x = 181,317.69

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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.