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Finding the Fourth Proportional to 170,275.81, 255,453.66 and 51,947.11

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Solution

The fourth proportional to 170,275.81, 255,453.66 and 51,947.11 is: 77,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,275.81 : 255,453.66 = 51,947.11 : x
  2. Step 2: Convert to fraction form
    170,275.81/255,453.66 = 51,947.11/x
  3. Step 3: Cross multiply
    170,275.81x = 255,453.66 × 51,947.11
  4. Step 4: Simplify right side
    170,275.81x = 13,270,079,375.92
  5. Step 5: Solve for x
    x = 13,270,079,375.92/170,275.81
  6. Step 6: Final answer
    x = 77,932.85

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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.