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Finding the Fourth Proportional to 133,419.28, 200,128.90 and 63,260.32

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Solution

The fourth proportional to 133,419.28, 200,128.90 and 63,260.32 is: 94,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,419.28 : 200,128.90 = 63,260.32 : x
  2. Step 2: Convert to fraction form
    133,419.28/200,128.90 = 63,260.32/x
  3. Step 3: Cross multiply
    133,419.28x = 200,128.90 × 63,260.32
  4. Step 4: Simplify right side
    133,419.28x = 12,660,218,255.25
  5. Step 5: Solve for x
    x = 12,660,218,255.25/133,419.28
  6. Step 6: Final answer
    x = 94,890.47

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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.