Home / 238,825.84-329,575-131,389.68

Finding the Fourth Proportional to 238,825.84, 329,575 and 131,389.68

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Solution

The fourth proportional to 238,825.84, 329,575 and 131,389.68 is: 181,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,825.84 : 329,575 = 131,389.68 : x
  2. Step 2: Convert to fraction form
    238,825.84/329,575 = 131,389.68/x
  3. Step 3: Cross multiply
    238,825.84x = 329,575 × 131,389.68
  4. Step 4: Simplify right side
    238,825.84x = 43,302,753,786
  5. Step 5: Solve for x
    x = 43,302,753,786/238,825.84
  6. Step 6: Final answer
    x = 181,315.20

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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.