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Finding the Fourth Proportional to 171,087.80, 256,631.70 and 153,591.80

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Solution

The fourth proportional to 171,087.80, 256,631.70 and 153,591.80 is: 230,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,087.80 : 256,631.70 = 153,591.80 : x
  2. Step 2: Convert to fraction form
    171,087.80/256,631.70 = 153,591.80/x
  3. Step 3: Cross multiply
    171,087.80x = 256,631.70 × 153,591.80
  4. Step 4: Simplify right side
    171,087.80x = 39,416,524,740.06
  5. Step 5: Solve for x
    x = 39,416,524,740.06/171,087.80
  6. Step 6: Final answer
    x = 230,387.70

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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.