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Finding the Fourth Proportional to 254,153.85, 381,107.66 and 76,627.77

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Solution

The fourth proportional to 254,153.85, 381,107.66 and 76,627.77 is: 114,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,153.85 : 381,107.66 = 76,627.77 : x
  2. Step 2: Convert to fraction form
    254,153.85/381,107.66 = 76,627.77/x
  3. Step 3: Cross multiply
    254,153.85x = 381,107.66 × 76,627.77
  4. Step 4: Simplify right side
    254,153.85x = 29,203,429,732.58
  5. Step 5: Solve for x
    x = 29,203,429,732.58/254,153.85
  6. Step 6: Final answer
    x = 114,904.53

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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.