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Finding the Fourth Proportional to 170,622.80, 256,128.60 and 100,541.60

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Solution

The fourth proportional to 170,622.80, 256,128.60 and 100,541.60 is: 150,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,622.80 : 256,128.60 = 100,541.60 : x
  2. Step 2: Convert to fraction form
    170,622.80/256,128.60 = 100,541.60/x
  3. Step 3: Cross multiply
    170,622.80x = 256,128.60 × 100,541.60
  4. Step 4: Simplify right side
    170,622.80x = 25,751,579,249.76
  5. Step 5: Solve for x
    x = 25,751,579,249.76/170,622.80
  6. Step 6: Final answer
    x = 150,926.95

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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.