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Finding the Fourth Proportional to 171,012.40, 256,518.60 and 168,679.60

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Solution

The fourth proportional to 171,012.40, 256,518.60 and 168,679.60 is: 253,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,012.40 : 256,518.60 = 168,679.60 : x
  2. Step 2: Convert to fraction form
    171,012.40/256,518.60 = 168,679.60/x
  3. Step 3: Cross multiply
    171,012.40x = 256,518.60 × 168,679.60
  4. Step 4: Simplify right side
    171,012.40x = 43,269,454,840.56
  5. Step 5: Solve for x
    x = 43,269,454,840.56/171,012.40
  6. Step 6: Final answer
    x = 253,019.40

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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.