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Finding the Fourth Proportional to 219,353.44, 329,027.28 and 53,142.88

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Solution

The fourth proportional to 219,353.44, 329,027.28 and 53,142.88 is: 79,713.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,353.44 : 329,027.28 = 53,142.88 : x
  2. Step 2: Convert to fraction form
    219,353.44/329,027.28 = 53,142.88/x
  3. Step 3: Cross multiply
    219,353.44x = 329,027.28 × 53,142.88
  4. Step 4: Simplify right side
    219,353.44x = 17,485,457,257.77
  5. Step 5: Solve for x
    x = 17,485,457,257.77/219,353.44
  6. Step 6: Final answer
    x = 79,713.62

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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.