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Finding the Fourth Proportional to 219,927.60, 329,891.40 and 149,068.80

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Solution

The fourth proportional to 219,927.60, 329,891.40 and 149,068.80 is: 223,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,927.60 : 329,891.40 = 149,068.80 : x
  2. Step 2: Convert to fraction form
    219,927.60/329,891.40 = 149,068.80/x
  3. Step 3: Cross multiply
    219,927.60x = 329,891.40 × 149,068.80
  4. Step 4: Simplify right side
    219,927.60x = 49,176,515,128.32
  5. Step 5: Solve for x
    x = 49,176,515,128.32/219,927.60
  6. Step 6: Final answer
    x = 223,603.20

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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.