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Finding the Fourth Proportional to 198,881.55, 298,322.33 and 159,515.55

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Solution

The fourth proportional to 198,881.55, 298,322.33 and 159,515.55 is: 239,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,881.55 : 298,322.33 = 159,515.55 : x
  2. Step 2: Convert to fraction form
    198,881.55/298,322.33 = 159,515.55/x
  3. Step 3: Cross multiply
    198,881.55x = 298,322.33 × 159,515.55
  4. Step 4: Simplify right side
    198,881.55x = 47,587,049,749.65
  5. Step 5: Solve for x
    x = 47,587,049,749.65/198,881.55
  6. Step 6: Final answer
    x = 239,273.33

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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.