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Finding the Fourth Proportional to 219,861.57, 329,792.82 and 53,649.57

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Solution

The fourth proportional to 219,861.57, 329,792.82 and 53,649.57 is: 80,474.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,861.57 : 329,792.82 = 53,649.57 : x
  2. Step 2: Convert to fraction form
    219,861.57/329,792.82 = 53,649.57/x
  3. Step 3: Cross multiply
    219,861.57x = 329,792.82 × 53,649.57
  4. Step 4: Simplify right side
    219,861.57x = 17,693,244,017.62
  5. Step 5: Solve for x
    x = 17,693,244,017.62/219,861.57
  6. Step 6: Final answer
    x = 80,474.47

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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.