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Finding the Fourth Proportional to 192,613.70, 288,959.96 and 66,237.54

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Solution

The fourth proportional to 192,613.70, 288,959.96 and 66,237.54 is: 99,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,613.70 : 288,959.96 = 66,237.54 : x
  2. Step 2: Convert to fraction form
    192,613.70/288,959.96 = 66,237.54/x
  3. Step 3: Cross multiply
    192,613.70x = 288,959.96 × 66,237.54
  4. Step 4: Simplify right side
    192,613.70x = 19,139,996,908.90
  5. Step 5: Solve for x
    x = 19,139,996,908.90/192,613.70
  6. Step 6: Final answer
    x = 99,369.86

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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.