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Finding the Fourth Proportional to 201,099.52, 277,414.68 and 128,426.04

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Solution

The fourth proportional to 201,099.52, 277,414.68 and 128,426.04 is: 177,162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,099.52 : 277,414.68 = 128,426.04 : x
  2. Step 2: Convert to fraction form
    201,099.52/277,414.68 = 128,426.04/x
  3. Step 3: Cross multiply
    201,099.52x = 277,414.68 × 128,426.04
  4. Step 4: Simplify right side
    201,099.52x = 35,627,268,790.27
  5. Step 5: Solve for x
    x = 35,627,268,790.27/201,099.52
  6. Step 6: Final answer
    x = 177,162.38

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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.