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Finding the Fourth Proportional to 254,604.69, 381,325.73 and 121,578.66

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Solution

The fourth proportional to 254,604.69, 381,325.73 and 121,578.66 is: 182,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,604.69 : 381,325.73 = 121,578.66 : x
  2. Step 2: Convert to fraction form
    254,604.69/381,325.73 = 121,578.66/x
  3. Step 3: Cross multiply
    254,604.69x = 381,325.73 × 121,578.66
  4. Step 4: Simplify right side
    254,604.69x = 46,361,070,669.03
  5. Step 5: Solve for x
    x = 46,361,070,669.03/254,604.69
  6. Step 6: Final answer
    x = 182,090.40

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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.