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Finding the Fourth Proportional to 146,409.20, 219,613.80 and 131,202.80

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Solution

The fourth proportional to 146,409.20, 219,613.80 and 131,202.80 is: 196,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,409.20 : 219,613.80 = 131,202.80 : x
  2. Step 2: Convert to fraction form
    146,409.20/219,613.80 = 131,202.80/x
  3. Step 3: Cross multiply
    146,409.20x = 219,613.80 × 131,202.80
  4. Step 4: Simplify right side
    146,409.20x = 28,813,945,478.64
  5. Step 5: Solve for x
    x = 28,813,945,478.64/146,409.20
  6. Step 6: Final answer
    x = 196,804.20

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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.