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Finding the Fourth Proportional to 285,999.96, 394,737.39 and 165,160.92

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Solution

The fourth proportional to 285,999.96, 394,737.39 and 165,160.92 is: 227,955.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,999.96 : 394,737.39 = 165,160.92 : x
  2. Step 2: Convert to fraction form
    285,999.96/394,737.39 = 165,160.92/x
  3. Step 3: Cross multiply
    285,999.96x = 394,737.39 × 165,160.92
  4. Step 4: Simplify right side
    285,999.96x = 65,195,190,490.80
  5. Step 5: Solve for x
    x = 65,195,190,490.80/285,999.96
  6. Step 6: Final answer
    x = 227,955.24

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1.5x scale

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.