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Finding the Fourth Proportional to 254,161.32, 380,640.86 and 220,699.54

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Solution

The fourth proportional to 254,161.32, 380,640.86 and 220,699.54 is: 330,527.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,161.32 : 380,640.86 = 220,699.54 : x
  2. Step 2: Convert to fraction form
    254,161.32/380,640.86 = 220,699.54/x
  3. Step 3: Cross multiply
    254,161.32x = 380,640.86 × 220,699.54
  4. Step 4: Simplify right side
    254,161.32x = 84,007,262,707.20
  5. Step 5: Solve for x
    x = 84,007,262,707.20/254,161.32
  6. Step 6: Final answer
    x = 330,527.33

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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.