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Finding the Fourth Proportional to 219,863.80, 329,568.90 and 119,812.60

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Solution

The fourth proportional to 219,863.80, 329,568.90 and 119,812.60 is: 179,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,863.80 : 329,568.90 = 119,812.60 : x
  2. Step 2: Convert to fraction form
    219,863.80/329,568.90 = 119,812.60/x
  3. Step 3: Cross multiply
    219,863.80x = 329,568.90 × 119,812.60
  4. Step 4: Simplify right side
    219,863.80x = 39,486,506,788.14
  5. Step 5: Solve for x
    x = 39,486,506,788.14/219,863.80
  6. Step 6: Final answer
    x = 179,595.31

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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.