Home / 285,699.14-394,185.02-225,081.66

Finding the Fourth Proportional to 285,699.14, 394,185.02 and 225,081.66

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Solution

The fourth proportional to 285,699.14, 394,185.02 and 225,081.66 is: 310,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,699.14 : 394,185.02 = 225,081.66 : x
  2. Step 2: Convert to fraction form
    285,699.14/394,185.02 = 225,081.66/x
  3. Step 3: Cross multiply
    285,699.14x = 394,185.02 × 225,081.66
  4. Step 4: Simplify right side
    285,699.14x = 88,723,817,523.32
  5. Step 5: Solve for x
    x = 88,723,817,523.32/285,699.14
  6. Step 6: Final answer
    x = 310,549.83

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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.