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Finding the Fourth Proportional to 262,700.16, 394,105.60 and 85,193.33

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Solution

The fourth proportional to 262,700.16, 394,105.60 and 85,193.33 is: 127,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,700.16 : 394,105.60 = 85,193.33 : x
  2. Step 2: Convert to fraction form
    262,700.16/394,105.60 = 85,193.33/x
  3. Step 3: Cross multiply
    262,700.16x = 394,105.60 × 85,193.33
  4. Step 4: Simplify right side
    262,700.16x = 33,575,169,342.67
  5. Step 5: Solve for x
    x = 33,575,169,342.67/262,700.16
  6. Step 6: Final answer
    x = 127,807.95

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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.