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Finding the Fourth Proportional to 219,679.60, 329,519.40 and 53,467.60

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Solution

The fourth proportional to 219,679.60, 329,519.40 and 53,467.60 is: 80,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,679.60 : 329,519.40 = 53,467.60 : x
  2. Step 2: Convert to fraction form
    219,679.60/329,519.40 = 53,467.60/x
  3. Step 3: Cross multiply
    219,679.60x = 329,519.40 × 53,467.60
  4. Step 4: Simplify right side
    219,679.60x = 17,618,611,471.44
  5. Step 5: Solve for x
    x = 17,618,611,471.44/219,679.60
  6. Step 6: Final answer
    x = 80,201.40

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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.