Home / 285,899.72-394,541.87-158,575.31

Finding the Fourth Proportional to 285,899.72, 394,541.87 and 158,575.31

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Solution

The fourth proportional to 285,899.72, 394,541.87 and 158,575.31 is: 218,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,899.72 : 394,541.87 = 158,575.31 : x
  2. Step 2: Convert to fraction form
    285,899.72/394,541.87 = 158,575.31/x
  3. Step 3: Cross multiply
    285,899.72x = 394,541.87 × 158,575.31
  4. Step 4: Simplify right side
    285,899.72x = 62,564,599,343.23
  5. Step 5: Solve for x
    x = 62,564,599,343.23/285,899.72
  6. Step 6: Final answer
    x = 218,834.07

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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.