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Finding the Fourth Proportional to 219,967.57, 330,076.19 and 118,764.28

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Solution

The fourth proportional to 219,967.57, 330,076.19 and 118,764.28 is: 178,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,967.57 : 330,076.19 = 118,764.28 : x
  2. Step 2: Convert to fraction form
    219,967.57/330,076.19 = 118,764.28/x
  3. Step 3: Cross multiply
    219,967.57x = 330,076.19 × 118,764.28
  4. Step 4: Simplify right side
    219,967.57x = 39,201,261,050.49
  5. Step 5: Solve for x
    x = 39,201,261,050.49/219,967.57
  6. Step 6: Final answer
    x = 178,213.82

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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.