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Finding the Fourth Proportional to 255,155.56, 352,157.84 and 147,790.96

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Solution

The fourth proportional to 255,155.56, 352,157.84 and 147,790.96 is: 203,976.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,155.56 : 352,157.84 = 147,790.96 : x
  2. Step 2: Convert to fraction form
    255,155.56/352,157.84 = 147,790.96/x
  3. Step 3: Cross multiply
    255,155.56x = 352,157.84 × 147,790.96
  4. Step 4: Simplify right side
    255,155.56x = 52,045,745,245.13
  5. Step 5: Solve for x
    x = 52,045,745,245.13/255,155.56
  6. Step 6: Final answer
    x = 203,976.53

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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.