Home / 285,890.91-394,576.70-158,607.51

Finding the Fourth Proportional to 285,890.91, 394,576.70 and 158,607.51

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Solution

The fourth proportional to 285,890.91, 394,576.70 and 158,607.51 is: 218,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,890.91 : 394,576.70 = 158,607.51 : x
  2. Step 2: Convert to fraction form
    285,890.91/394,576.70 = 158,607.51/x
  3. Step 3: Cross multiply
    285,890.91x = 394,576.70 × 158,607.51
  4. Step 4: Simplify right side
    285,890.91x = 62,582,827,891.02
  5. Step 5: Solve for x
    x = 62,582,827,891.02/285,890.91
  6. Step 6: Final answer
    x = 218,904.57

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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.