Home / 285,814.60-394,439.89-158,487.46

Finding the Fourth Proportional to 285,814.60, 394,439.89 and 158,487.46

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Solution

The fourth proportional to 285,814.60, 394,439.89 and 158,487.46 is: 218,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,814.60 : 394,439.89 = 158,487.46 : x
  2. Step 2: Convert to fraction form
    285,814.60/394,439.89 = 158,487.46/x
  3. Step 3: Cross multiply
    285,814.60x = 394,439.89 × 158,487.46
  4. Step 4: Simplify right side
    285,814.60x = 62,513,776,288.78
  5. Step 5: Solve for x
    x = 62,513,776,288.78/285,814.60
  6. Step 6: Final answer
    x = 218,721.42

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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.