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Finding the Fourth Proportional to 221,501.90, 332,301.45 and 71,716.70

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Solution

The fourth proportional to 221,501.90, 332,301.45 and 71,716.70 is: 107,590.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,501.90 : 332,301.45 = 71,716.70 : x
  2. Step 2: Convert to fraction form
    221,501.90/332,301.45 = 71,716.70/x
  3. Step 3: Cross multiply
    221,501.90x = 332,301.45 × 71,716.70
  4. Step 4: Simplify right side
    221,501.90x = 23,831,563,399.22
  5. Step 5: Solve for x
    x = 23,831,563,399.22/221,501.90
  6. Step 6: Final answer
    x = 107,590.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.