Home / 285,418.72-393,904.49-158,094.41

Finding the Fourth Proportional to 285,418.72, 393,904.49 and 158,094.41

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Solution

The fourth proportional to 285,418.72, 393,904.49 and 158,094.41 is: 218,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,418.72 : 393,904.49 = 158,094.41 : x
  2. Step 2: Convert to fraction form
    285,418.72/393,904.49 = 158,094.41/x
  3. Step 3: Cross multiply
    285,418.72x = 393,904.49 × 158,094.41
  4. Step 4: Simplify right side
    285,418.72x = 62,274,097,942.90
  5. Step 5: Solve for x
    x = 62,274,097,942.90/285,418.72
  6. Step 6: Final answer
    x = 218,185.05

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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.