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Finding the Fourth Proportional to 221,347.40, 331,502.70 and 168,470.60

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Solution

The fourth proportional to 221,347.40, 331,502.70 and 168,470.60 is: 252,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,347.40 : 331,502.70 = 168,470.60 : x
  2. Step 2: Convert to fraction form
    221,347.40/331,502.70 = 168,470.60/x
  3. Step 3: Cross multiply
    221,347.40x = 331,502.70 × 168,470.60
  4. Step 4: Simplify right side
    221,347.40x = 55,848,458,770.62
  5. Step 5: Solve for x
    x = 55,848,458,770.62/221,347.40
  6. Step 6: Final answer
    x = 252,311.34

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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.