Home / 220,837.70-331,256.55-186,623.30

Finding the Fourth Proportional to 220,837.70, 331,256.55 and 186,623.30

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Solution

The fourth proportional to 220,837.70, 331,256.55 and 186,623.30 is: 279,934.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,837.70 : 331,256.55 = 186,623.30 : x
  2. Step 2: Convert to fraction form
    220,837.70/331,256.55 = 186,623.30/x
  3. Step 3: Cross multiply
    220,837.70x = 331,256.55 × 186,623.30
  4. Step 4: Simplify right side
    220,837.70x = 61,820,190,507.62
  5. Step 5: Solve for x
    x = 61,820,190,507.62/220,837.70
  6. Step 6: Final answer
    x = 279,934.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.