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Finding the Fourth Proportional to 217,334.40, 325,310.40 and 155,126.40

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Solution

The fourth proportional to 217,334.40, 325,310.40 and 155,126.40 is: 232,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,334.40 : 325,310.40 = 155,126.40 : x
  2. Step 2: Convert to fraction form
    217,334.40/325,310.40 = 155,126.40/x
  3. Step 3: Cross multiply
    217,334.40x = 325,310.40 × 155,126.40
  4. Step 4: Simplify right side
    217,334.40x = 50,464,231,234.56
  5. Step 5: Solve for x
    x = 50,464,231,234.56/217,334.40
  6. Step 6: Final answer
    x = 232,196.24

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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.