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Finding the Fourth Proportional to 254,129.01, 381,096.24 and 85,604.05

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Solution

The fourth proportional to 254,129.01, 381,096.24 and 85,604.05 is: 128,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,129.01 : 381,096.24 = 85,604.05 : x
  2. Step 2: Convert to fraction form
    254,129.01/381,096.24 = 85,604.05/x
  3. Step 3: Cross multiply
    254,129.01x = 381,096.24 × 85,604.05
  4. Step 4: Simplify right side
    254,129.01x = 32,623,381,583.77
  5. Step 5: Solve for x
    x = 32,623,381,583.77/254,129.01
  6. Step 6: Final answer
    x = 128,373.31

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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.