Home / 219,690.20-329,276.10-164,221.40

Finding the Fourth Proportional to 219,690.20, 329,276.10 and 164,221.40

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Solution

The fourth proportional to 219,690.20, 329,276.10 and 164,221.40 is: 246,138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,690.20 : 329,276.10 = 164,221.40 : x
  2. Step 2: Convert to fraction form
    219,690.20/329,276.10 = 164,221.40/x
  3. Step 3: Cross multiply
    219,690.20x = 329,276.10 × 164,221.40
  4. Step 4: Simplify right side
    219,690.20x = 54,074,182,128.54
  5. Step 5: Solve for x
    x = 54,074,182,128.54/219,690.20
  6. Step 6: Final answer
    x = 246,138.34

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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.