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Finding the Fourth Proportional to 219,928.80, 303,503.04 and 119,326.72

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Solution

The fourth proportional to 219,928.80, 303,503.04 and 119,326.72 is: 164,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,928.80 : 303,503.04 = 119,326.72 : x
  2. Step 2: Convert to fraction form
    219,928.80/303,503.04 = 119,326.72/x
  3. Step 3: Cross multiply
    219,928.80x = 303,503.04 × 119,326.72
  4. Step 4: Simplify right side
    219,928.80x = 36,216,022,273.23
  5. Step 5: Solve for x
    x = 36,216,022,273.23/219,928.80
  6. Step 6: Final answer
    x = 164,671.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.