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Finding the Fourth Proportional to 171,299.30, 256,860.41 and 75,197.18

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Solution

The fourth proportional to 171,299.30, 256,860.41 and 75,197.18 is: 112,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,299.30 : 256,860.41 = 75,197.18 : x
  2. Step 2: Convert to fraction form
    171,299.30/256,860.41 = 75,197.18/x
  3. Step 3: Cross multiply
    171,299.30x = 256,860.41 × 75,197.18
  4. Step 4: Simplify right side
    171,299.30x = 19,315,177,013.35
  5. Step 5: Solve for x
    x = 19,315,177,013.35/171,299.30
  6. Step 6: Final answer
    x = 112,756.90

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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.