Home / 285,781.59-394,396.02-158,457.15

Finding the Fourth Proportional to 285,781.59, 394,396.02 and 158,457.15

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Solution

The fourth proportional to 285,781.59, 394,396.02 and 158,457.15 is: 218,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,781.59 : 394,396.02 = 158,457.15 : x
  2. Step 2: Convert to fraction form
    285,781.59/394,396.02 = 158,457.15/x
  3. Step 3: Cross multiply
    285,781.59x = 394,396.02 × 158,457.15
  4. Step 4: Simplify right side
    285,781.59x = 62,494,869,300.54
  5. Step 5: Solve for x
    x = 62,494,869,300.54/285,781.59
  6. Step 6: Final answer
    x = 218,680.53

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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.