Home / 238,981.37-329,803.70-131,561.40

Finding the Fourth Proportional to 238,981.37, 329,803.70 and 131,561.40

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Solution

The fourth proportional to 238,981.37, 329,803.70 and 131,561.40 is: 181,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,981.37 : 329,803.70 = 131,561.40 : x
  2. Step 2: Convert to fraction form
    238,981.37/329,803.70 = 131,561.40/x
  3. Step 3: Cross multiply
    238,981.37x = 329,803.70 × 131,561.40
  4. Step 4: Simplify right side
    238,981.37x = 43,389,435,839.37
  5. Step 5: Solve for x
    x = 43,389,435,839.37/238,981.37
  6. Step 6: Final answer
    x = 181,559.91

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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.