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Finding the Fourth Proportional to 219,800.18, 329,654.14 and 61,991.73

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Solution

The fourth proportional to 219,800.18, 329,654.14 and 61,991.73 is: 92,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,800.18 : 329,654.14 = 61,991.73 : x
  2. Step 2: Convert to fraction form
    219,800.18/329,654.14 = 61,991.73/x
  3. Step 3: Cross multiply
    219,800.18x = 329,654.14 × 61,991.73
  4. Step 4: Simplify right side
    219,800.18x = 20,435,830,130.30
  5. Step 5: Solve for x
    x = 20,435,830,130.30/219,800.18
  6. Step 6: Final answer
    x = 92,974.58

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1.5x scale

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.