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Finding the Fourth Proportional to 203,555.04, 305,520.48 and 146,688

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Solution

The fourth proportional to 203,555.04, 305,520.48 and 146,688 is: 220,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,555.04 : 305,520.48 = 146,688 : x
  2. Step 2: Convert to fraction form
    203,555.04/305,520.48 = 146,688/x
  3. Step 3: Cross multiply
    203,555.04x = 305,520.48 × 146,688
  4. Step 4: Simplify right side
    203,555.04x = 44,816,188,170.24
  5. Step 5: Solve for x
    x = 44,816,188,170.24/203,555.04
  6. Step 6: Final answer
    x = 220,167.42

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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.