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Finding the Fourth Proportional to 203,044.93, 280,198.61 and 112,398.98

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Solution

The fourth proportional to 203,044.93, 280,198.61 and 112,398.98 is: 155,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,044.93 : 280,198.61 = 112,398.98 : x
  2. Step 2: Convert to fraction form
    203,044.93/280,198.61 = 112,398.98/x
  3. Step 3: Cross multiply
    203,044.93x = 280,198.61 × 112,398.98
  4. Step 4: Simplify right side
    203,044.93x = 31,494,036,419.93
  5. Step 5: Solve for x
    x = 31,494,036,419.93/203,044.93
  6. Step 6: Final answer
    x = 155,108.71

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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.