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Finding the Fourth Proportional to 221,410.10, 332,115.15 and 71,661.35

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Solution

The fourth proportional to 221,410.10, 332,115.15 and 71,661.35 is: 107,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,410.10 : 332,115.15 = 71,661.35 : x
  2. Step 2: Convert to fraction form
    221,410.10/332,115.15 = 71,661.35/x
  3. Step 3: Cross multiply
    221,410.10x = 332,115.15 × 71,661.35
  4. Step 4: Simplify right side
    221,410.10x = 23,799,820,004.45
  5. Step 5: Solve for x
    x = 23,799,820,004.45/221,410.10
  6. Step 6: Final answer
    x = 107,492.03

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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.