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Finding the Fourth Proportional to 219,230.88, 328,720.72 and 67,388.42

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Solution

The fourth proportional to 219,230.88, 328,720.72 and 67,388.42 is: 101,044.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,230.88 : 328,720.72 = 67,388.42 : x
  2. Step 2: Convert to fraction form
    219,230.88/328,720.72 = 67,388.42/x
  3. Step 3: Cross multiply
    219,230.88x = 328,720.72 × 67,388.42
  4. Step 4: Simplify right side
    219,230.88x = 22,151,969,942.06
  5. Step 5: Solve for x
    x = 22,151,969,942.06/219,230.88
  6. Step 6: Final answer
    x = 101,044.02

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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.