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Finding the Fourth Proportional to 219,611.54, 329,439.72 and 59,690

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Solution

The fourth proportional to 219,611.54, 329,439.72 and 59,690 is: 89,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,611.54 : 329,439.72 = 59,690 : x
  2. Step 2: Convert to fraction form
    219,611.54/329,439.72 = 59,690/x
  3. Step 3: Cross multiply
    219,611.54x = 329,439.72 × 59,690
  4. Step 4: Simplify right side
    219,611.54x = 19,664,256,886.80
  5. Step 5: Solve for x
    x = 19,664,256,886.80/219,611.54
  6. Step 6: Final answer
    x = 89,541.09

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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.