Home / 238,731-329,451.51-131,302.80

Finding the Fourth Proportional to 238,731, 329,451.51 and 131,302.80

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Solution

The fourth proportional to 238,731, 329,451.51 and 131,302.80 is: 181,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,731 : 329,451.51 = 131,302.80 : x
  2. Step 2: Convert to fraction form
    238,731/329,451.51 = 131,302.80/x
  3. Step 3: Cross multiply
    238,731x = 329,451.51 × 131,302.80
  4. Step 4: Simplify right side
    238,731x = 43,257,905,727.23
  5. Step 5: Solve for x
    x = 43,257,905,727.23/238,731
  6. Step 6: Final answer
    x = 181,199.37

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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.