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Finding the Fourth Proportional to 219,164.80, 329,054.40 and 136,220.80

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Solution

The fourth proportional to 219,164.80, 329,054.40 and 136,220.80 is: 204,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,164.80 : 329,054.40 = 136,220.80 : x
  2. Step 2: Convert to fraction form
    219,164.80/329,054.40 = 136,220.80/x
  3. Step 3: Cross multiply
    219,164.80x = 329,054.40 × 136,220.80
  4. Step 4: Simplify right side
    219,164.80x = 44,824,053,611.52
  5. Step 5: Solve for x
    x = 44,824,053,611.52/219,164.80
  6. Step 6: Final answer
    x = 204,522.14

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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.