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Finding the Fourth Proportional to 254,472.64, 381,552.22 and 85,977.05

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Solution

The fourth proportional to 254,472.64, 381,552.22 and 85,977.05 is: 128,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,472.64 : 381,552.22 = 85,977.05 : x
  2. Step 2: Convert to fraction form
    254,472.64/381,552.22 = 85,977.05/x
  3. Step 3: Cross multiply
    254,472.64x = 381,552.22 × 85,977.05
  4. Step 4: Simplify right side
    254,472.64x = 32,804,732,496.26
  5. Step 5: Solve for x
    x = 32,804,732,496.26/254,472.64
  6. Step 6: Final answer
    x = 128,912.61

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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.