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Finding the Fourth Proportional to 197,489.80, 296,040.30 and 97,665.40

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Solution

The fourth proportional to 197,489.80, 296,040.30 and 97,665.40 is: 146,401.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,489.80 : 296,040.30 = 97,665.40 : x
  2. Step 2: Convert to fraction form
    197,489.80/296,040.30 = 97,665.40/x
  3. Step 3: Cross multiply
    197,489.80x = 296,040.30 × 97,665.40
  4. Step 4: Simplify right side
    197,489.80x = 28,912,894,315.62
  5. Step 5: Solve for x
    x = 28,912,894,315.62/197,489.80
  6. Step 6: Final answer
    x = 146,401.96

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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.