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Finding the Fourth Proportional to 198,160.59, 297,240.90 and 65,005.11

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Solution

The fourth proportional to 198,160.59, 297,240.90 and 65,005.11 is: 97,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,160.59 : 297,240.90 = 65,005.11 : x
  2. Step 2: Convert to fraction form
    198,160.59/297,240.90 = 65,005.11/x
  3. Step 3: Cross multiply
    198,160.59x = 297,240.90 × 65,005.11
  4. Step 4: Simplify right side
    198,160.59x = 19,322,177,401.00
  5. Step 5: Solve for x
    x = 19,322,177,401.00/198,160.59
  6. Step 6: Final answer
    x = 97,507.67

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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.