Home / 238,821.98-329,574.32-131,389.70

Finding the Fourth Proportional to 238,821.98, 329,574.32 and 131,389.70

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Solution

The fourth proportional to 238,821.98, 329,574.32 and 131,389.70 is: 181,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,821.98 : 329,574.32 = 131,389.70 : x
  2. Step 2: Convert to fraction form
    238,821.98/329,574.32 = 131,389.70/x
  3. Step 3: Cross multiply
    238,821.98x = 329,574.32 × 131,389.70
  4. Step 4: Simplify right side
    238,821.98x = 43,302,671,527.97
  5. Step 5: Solve for x
    x = 43,302,671,527.97/238,821.98
  6. Step 6: Final answer
    x = 181,317.78

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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.