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Finding the Fourth Proportional to 254,364.54, 381,754.17 and 129,741.18

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Solution

The fourth proportional to 254,364.54, 381,754.17 and 129,741.18 is: 194,717.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,364.54 : 381,754.17 = 129,741.18 : x
  2. Step 2: Convert to fraction form
    254,364.54/381,754.17 = 129,741.18/x
  3. Step 3: Cross multiply
    254,364.54x = 381,754.17 × 129,741.18
  4. Step 4: Simplify right side
    254,364.54x = 49,529,236,485.72
  5. Step 5: Solve for x
    x = 49,529,236,485.72/254,364.54
  6. Step 6: Final answer
    x = 194,717.54

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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.