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Finding the Fourth Proportional to 285,077.44, 427,607.34 and 135,425.44

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Solution

The fourth proportional to 285,077.44, 427,607.34 and 135,425.44 is: 203,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,077.44 : 427,607.34 = 135,425.44 : x
  2. Step 2: Convert to fraction form
    285,077.44/427,607.34 = 135,425.44/x
  3. Step 3: Cross multiply
    285,077.44x = 427,607.34 × 135,425.44
  4. Step 4: Simplify right side
    285,077.44x = 57,908,912,166.73
  5. Step 5: Solve for x
    x = 57,908,912,166.73/285,077.44
  6. Step 6: Final answer
    x = 203,133.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.