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Finding the Fourth Proportional to 217,465.88, 300,103.46 and 126,884.12

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Solution

The fourth proportional to 217,465.88, 300,103.46 and 126,884.12 is: 175,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,465.88 : 300,103.46 = 126,884.12 : x
  2. Step 2: Convert to fraction form
    217,465.88/300,103.46 = 126,884.12/x
  3. Step 3: Cross multiply
    217,465.88x = 300,103.46 × 126,884.12
  4. Step 4: Simplify right side
    217,465.88x = 38,078,363,431.06
  5. Step 5: Solve for x
    x = 38,078,363,431.06/217,465.88
  6. Step 6: Final answer
    x = 175,100.40

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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.