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Finding the Fourth Proportional to 220,894.40, 331,341.60 and 154,409.60

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Solution

The fourth proportional to 220,894.40, 331,341.60 and 154,409.60 is: 231,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,894.40 : 331,341.60 = 154,409.60 : x
  2. Step 2: Convert to fraction form
    220,894.40/331,341.60 = 154,409.60/x
  3. Step 3: Cross multiply
    220,894.40x = 331,341.60 × 154,409.60
  4. Step 4: Simplify right side
    220,894.40x = 51,162,323,919.36
  5. Step 5: Solve for x
    x = 51,162,323,919.36/220,894.40
  6. Step 6: Final answer
    x = 231,614.40

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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.