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Finding the Fourth Proportional to 166,635.40, 230,399.22 and 145,640.20

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Solution

The fourth proportional to 166,635.40, 230,399.22 and 145,640.20 is: 201,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,635.40 : 230,399.22 = 145,640.20 : x
  2. Step 2: Convert to fraction form
    166,635.40/230,399.22 = 145,640.20/x
  3. Step 3: Cross multiply
    166,635.40x = 230,399.22 × 145,640.20
  4. Step 4: Simplify right side
    166,635.40x = 33,555,388,480.64
  5. Step 5: Solve for x
    x = 33,555,388,480.64/166,635.40
  6. Step 6: Final answer
    x = 201,370.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.