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Finding the Fourth Proportional to 219,822.60, 329,928.30 and 188,329.80

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Solution

The fourth proportional to 219,822.60, 329,928.30 and 188,329.80 is: 282,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,822.60 : 329,928.30 = 188,329.80 : x
  2. Step 2: Convert to fraction form
    219,822.60/329,928.30 = 188,329.80/x
  3. Step 3: Cross multiply
    219,822.60x = 329,928.30 × 188,329.80
  4. Step 4: Simplify right side
    219,822.60x = 62,135,330,753.34
  5. Step 5: Solve for x
    x = 62,135,330,753.34/219,822.60
  6. Step 6: Final answer
    x = 282,661.25

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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.