Home / 418,824.77-628,111.56-178,928.97

Finding the Fourth Proportional to 418,824.77, 628,111.56 and 178,928.97

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Solution

The fourth proportional to 418,824.77, 628,111.56 and 178,928.97 is: 268,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,824.77 : 628,111.56 = 178,928.97 : x
  2. Step 2: Convert to fraction form
    418,824.77/628,111.56 = 178,928.97/x
  3. Step 3: Cross multiply
    418,824.77x = 628,111.56 × 178,928.97
  4. Step 4: Simplify right side
    418,824.77x = 112,387,354,475.89
  5. Step 5: Solve for x
    x = 112,387,354,475.89/418,824.77
  6. Step 6: Final answer
    x = 268,339.80

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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.