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Finding the Fourth Proportional to 219,805.80, 328,833.90 and 190,548.60

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Solution

The fourth proportional to 219,805.80, 328,833.90 and 190,548.60 is: 285,064.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,805.80 : 328,833.90 = 190,548.60 : x
  2. Step 2: Convert to fraction form
    219,805.80/328,833.90 = 190,548.60/x
  3. Step 3: Cross multiply
    219,805.80x = 328,833.90 × 190,548.60
  4. Step 4: Simplify right side
    219,805.80x = 62,658,839,277.54
  5. Step 5: Solve for x
    x = 62,658,839,277.54/219,805.80
  6. Step 6: Final answer
    x = 285,064.54

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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.