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Finding the Fourth Proportional to 254,610.78, 381,369.44 and 239,705.51

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Solution

The fourth proportional to 254,610.78, 381,369.44 and 239,705.51 is: 359,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,610.78 : 381,369.44 = 239,705.51 : x
  2. Step 2: Convert to fraction form
    254,610.78/381,369.44 = 239,705.51/x
  3. Step 3: Cross multiply
    254,610.78x = 381,369.44 × 239,705.51
  4. Step 4: Simplify right side
    254,610.78x = 91,416,353,008.24
  5. Step 5: Solve for x
    x = 91,416,353,008.24/254,610.78
  6. Step 6: Final answer
    x = 359,043.53

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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.