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Finding the Fourth Proportional to 217,366.96, 299,894.70 and 131,293.78

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Solution

The fourth proportional to 217,366.96, 299,894.70 and 131,293.78 is: 181,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,366.96 : 299,894.70 = 131,293.78 : x
  2. Step 2: Convert to fraction form
    217,366.96/299,894.70 = 131,293.78/x
  3. Step 3: Cross multiply
    217,366.96x = 299,894.70 × 131,293.78
  4. Step 4: Simplify right side
    217,366.96x = 39,374,308,764.97
  5. Step 5: Solve for x
    x = 39,374,308,764.97/217,366.96
  6. Step 6: Final answer
    x = 181,142.11

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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.