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Finding the Fourth Proportional to 170,708.51, 256,177.05 and 70,868.79

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Solution

The fourth proportional to 170,708.51, 256,177.05 and 70,868.79 is: 106,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,708.51 : 256,177.05 = 70,868.79 : x
  2. Step 2: Convert to fraction form
    170,708.51/256,177.05 = 70,868.79/x
  3. Step 3: Cross multiply
    170,708.51x = 256,177.05 × 70,868.79
  4. Step 4: Simplify right side
    170,708.51x = 18,154,957,293.51
  5. Step 5: Solve for x
    x = 18,154,957,293.51/170,708.51
  6. Step 6: Final answer
    x = 106,350.63

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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.