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Finding the Fourth Proportional to 171,229.01, 256,887.32 and 100,211.45

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Solution

The fourth proportional to 171,229.01, 256,887.32 and 100,211.45 is: 150,342.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,229.01 : 256,887.32 = 100,211.45 : x
  2. Step 2: Convert to fraction form
    171,229.01/256,887.32 = 100,211.45/x
  3. Step 3: Cross multiply
    171,229.01x = 256,887.32 × 100,211.45
  4. Step 4: Simplify right side
    171,229.01x = 25,743,049,038.32
  5. Step 5: Solve for x
    x = 25,743,049,038.32/171,229.01
  6. Step 6: Final answer
    x = 150,342.81

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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.