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Finding the Fourth Proportional to 221,255.60, 331,818.60 and 102,898.40

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Solution

The fourth proportional to 221,255.60, 331,818.60 and 102,898.40 is: 154,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,255.60 : 331,818.60 = 102,898.40 : x
  2. Step 2: Convert to fraction form
    221,255.60/331,818.60 = 102,898.40/x
  3. Step 3: Cross multiply
    221,255.60x = 331,818.60 × 102,898.40
  4. Step 4: Simplify right side
    221,255.60x = 34,143,603,030.24
  5. Step 5: Solve for x
    x = 34,143,603,030.24/221,255.60
  6. Step 6: Final answer
    x = 154,317.46

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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.