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Finding the Fourth Proportional to 285,548.80, 394,056.96 and 158,232.64

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Solution

The fourth proportional to 285,548.80, 394,056.96 and 158,232.64 is: 218,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,548.80 : 394,056.96 = 158,232.64 : x
  2. Step 2: Convert to fraction form
    285,548.80/394,056.96 = 158,232.64/x
  3. Step 3: Cross multiply
    285,548.80x = 394,056.96 × 158,232.64
  4. Step 4: Simplify right side
    285,548.80x = 62,352,673,091.17
  5. Step 5: Solve for x
    x = 62,352,673,091.17/285,548.80
  6. Step 6: Final answer
    x = 218,360.83

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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.