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Finding the Fourth Proportional to 203,479.45, 280,816.02 and 112,844.10

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Solution

The fourth proportional to 203,479.45, 280,816.02 and 112,844.10 is: 155,732.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,479.45 : 280,816.02 = 112,844.10 : x
  2. Step 2: Convert to fraction form
    203,479.45/280,816.02 = 112,844.10/x
  3. Step 3: Cross multiply
    203,479.45x = 280,816.02 × 112,844.10
  4. Step 4: Simplify right side
    203,479.45x = 31,688,431,042.48
  5. Step 5: Solve for x
    x = 31,688,431,042.48/203,479.45
  6. Step 6: Final answer
    x = 155,732.83

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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.