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Finding the Fourth Proportional to 198,679.98, 297,332.46 and 122,747.34

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Solution

The fourth proportional to 198,679.98, 297,332.46 and 122,747.34 is: 183,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,679.98 : 297,332.46 = 122,747.34 : x
  2. Step 2: Convert to fraction form
    198,679.98/297,332.46 = 122,747.34/x
  3. Step 3: Cross multiply
    198,679.98x = 297,332.46 × 122,747.34
  4. Step 4: Simplify right side
    198,679.98x = 36,496,768,560.66
  5. Step 5: Solve for x
    x = 36,496,768,560.66/198,679.98
  6. Step 6: Final answer
    x = 183,696.26

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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.