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Finding the Fourth Proportional to 192,689.69, 288,660.48 and 141,996.70

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Solution

The fourth proportional to 192,689.69, 288,660.48 and 141,996.70 is: 212,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,689.69 : 288,660.48 = 141,996.70 : x
  2. Step 2: Convert to fraction form
    192,689.69/288,660.48 = 141,996.70/x
  3. Step 3: Cross multiply
    192,689.69x = 288,660.48 × 141,996.70
  4. Step 4: Simplify right side
    192,689.69x = 40,988,835,580.42
  5. Step 5: Solve for x
    x = 40,988,835,580.42/192,689.69
  6. Step 6: Final answer
    x = 212,719.40

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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.