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Finding the Fourth Proportional to 217,100.40, 325,650.60 and 207,884.40

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Solution

The fourth proportional to 217,100.40, 325,650.60 and 207,884.40 is: 311,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,100.40 : 325,650.60 = 207,884.40 : x
  2. Step 2: Convert to fraction form
    217,100.40/325,650.60 = 207,884.40/x
  3. Step 3: Cross multiply
    217,100.40x = 325,650.60 × 207,884.40
  4. Step 4: Simplify right side
    217,100.40x = 67,697,679,590.64
  5. Step 5: Solve for x
    x = 67,697,679,590.64/217,100.40
  6. Step 6: Final answer
    x = 311,826.60

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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.