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Finding the Fourth Proportional to 170,852.57, 256,299.37 and 71,080.28

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Solution

The fourth proportional to 170,852.57, 256,299.37 and 71,080.28 is: 106,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,852.57 : 256,299.37 = 71,080.28 : x
  2. Step 2: Convert to fraction form
    170,852.57/256,299.37 = 71,080.28/x
  3. Step 3: Cross multiply
    170,852.57x = 256,299.37 × 71,080.28
  4. Step 4: Simplify right side
    170,852.57x = 18,217,829,524.23
  5. Step 5: Solve for x
    x = 18,217,829,524.23/170,852.57
  6. Step 6: Final answer
    x = 106,628.95

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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.