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Finding the Fourth Proportional to 219,874.10, 329,811.15 and 149,015.30

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Solution

The fourth proportional to 219,874.10, 329,811.15 and 149,015.30 is: 223,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,874.10 : 329,811.15 = 149,015.30 : x
  2. Step 2: Convert to fraction form
    219,874.10/329,811.15 = 149,015.30/x
  3. Step 3: Cross multiply
    219,874.10x = 329,811.15 × 149,015.30
  4. Step 4: Simplify right side
    219,874.10x = 49,146,907,460.60
  5. Step 5: Solve for x
    x = 49,146,907,460.60/219,874.10
  6. Step 6: Final answer
    x = 223,522.95

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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.