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Finding the Fourth Proportional to 216,092.70, 298,195.79 and 120,605.55

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Solution

The fourth proportional to 216,092.70, 298,195.79 and 120,605.55 is: 166,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,092.70 : 298,195.79 = 120,605.55 : x
  2. Step 2: Convert to fraction form
    216,092.70/298,195.79 = 120,605.55/x
  3. Step 3: Cross multiply
    216,092.70x = 298,195.79 × 120,605.55
  4. Step 4: Simplify right side
    216,092.70x = 35,964,067,260.63
  5. Step 5: Solve for x
    x = 35,964,067,260.63/216,092.70
  6. Step 6: Final answer
    x = 166,428.89

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1.5x scale

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.