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Finding the Fourth Proportional to 171,190.80, 256,248 and 117,568.80

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Solution

The fourth proportional to 171,190.80, 256,248 and 117,568.80 is: 175,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,190.80 : 256,248 = 117,568.80 : x
  2. Step 2: Convert to fraction form
    171,190.80/256,248 = 117,568.80/x
  3. Step 3: Cross multiply
    171,190.80x = 256,248 × 117,568.80
  4. Step 4: Simplify right side
    171,190.80x = 30,126,769,862.40
  5. Step 5: Solve for x
    x = 30,126,769,862.40/171,190.80
  6. Step 6: Final answer
    x = 175,983.58

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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.