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Finding the Fourth Proportional to 219,800.70, 329,701.05 and 166,656.60

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Solution

The fourth proportional to 219,800.70, 329,701.05 and 166,656.60 is: 249,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,800.70 : 329,701.05 = 166,656.60 : x
  2. Step 2: Convert to fraction form
    219,800.70/329,701.05 = 166,656.60/x
  3. Step 3: Cross multiply
    219,800.70x = 329,701.05 × 166,656.60
  4. Step 4: Simplify right side
    219,800.70x = 54,946,856,009.43
  5. Step 5: Solve for x
    x = 54,946,856,009.43/219,800.70
  6. Step 6: Final answer
    x = 249,984.90

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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.