Home / 219,918.40-329,877.60-194,986.60

Finding the Fourth Proportional to 219,918.40, 329,877.60 and 194,986.60

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Solution

The fourth proportional to 219,918.40, 329,877.60 and 194,986.60 is: 292,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,918.40 : 329,877.60 = 194,986.60 : x
  2. Step 2: Convert to fraction form
    219,918.40/329,877.60 = 194,986.60/x
  3. Step 3: Cross multiply
    219,918.40x = 329,877.60 × 194,986.60
  4. Step 4: Simplify right side
    219,918.40x = 64,321,711,640.16
  5. Step 5: Solve for x
    x = 64,321,711,640.16/219,918.40
  6. Step 6: Final answer
    x = 292,479.90

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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.