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Finding the Fourth Proportional to 221,211.26, 331,818.10 and 54,999.26

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Solution

The fourth proportional to 221,211.26, 331,818.10 and 54,999.26 is: 82,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,211.26 : 331,818.10 = 54,999.26 : x
  2. Step 2: Convert to fraction form
    221,211.26/331,818.10 = 54,999.26/x
  3. Step 3: Cross multiply
    221,211.26x = 331,818.10 × 54,999.26
  4. Step 4: Simplify right side
    221,211.26x = 18,249,749,954.61
  5. Step 5: Solve for x
    x = 18,249,749,954.61/221,211.26
  6. Step 6: Final answer
    x = 82,499.19

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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.