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Finding the Fourth Proportional to 262,937.84, 394,469.04 and 85,444.88

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Solution

The fourth proportional to 262,937.84, 394,469.04 and 85,444.88 is: 128,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,937.84 : 394,469.04 = 85,444.88 : x
  2. Step 2: Convert to fraction form
    262,937.84/394,469.04 = 85,444.88/x
  3. Step 3: Cross multiply
    262,937.84x = 394,469.04 × 85,444.88
  4. Step 4: Simplify right side
    262,937.84x = 33,705,359,786.52
  5. Step 5: Solve for x
    x = 33,705,359,786.52/262,937.84
  6. Step 6: Final answer
    x = 128,187.56

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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.