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Finding the Fourth Proportional to 171,370.14, 256,608.09 and 137,907.42

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Solution

The fourth proportional to 171,370.14, 256,608.09 and 137,907.42 is: 206,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,370.14 : 256,608.09 = 137,907.42 : x
  2. Step 2: Convert to fraction form
    171,370.14/256,608.09 = 137,907.42/x
  3. Step 3: Cross multiply
    171,370.14x = 256,608.09 × 137,907.42
  4. Step 4: Simplify right side
    171,370.14x = 35,388,159,643.03
  5. Step 5: Solve for x
    x = 35,388,159,643.03/171,370.14
  6. Step 6: Final answer
    x = 206,501.32

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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.