Home / 285,424.98-393,899.44-158,100.56

Finding the Fourth Proportional to 285,424.98, 393,899.44 and 158,100.56

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Solution

The fourth proportional to 285,424.98, 393,899.44 and 158,100.56 is: 218,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,424.98 : 393,899.44 = 158,100.56 : x
  2. Step 2: Convert to fraction form
    285,424.98/393,899.44 = 158,100.56/x
  3. Step 3: Cross multiply
    285,424.98x = 393,899.44 × 158,100.56
  4. Step 4: Simplify right side
    285,424.98x = 62,275,722,047.69
  5. Step 5: Solve for x
    x = 62,275,722,047.69/285,424.98
  6. Step 6: Final answer
    x = 218,185.96

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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.