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Finding the Fourth Proportional to 401,080.56, 601,215.78 and 251,425.75

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Solution

The fourth proportional to 401,080.56, 601,215.78 and 251,425.75 is: 376,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,080.56 : 601,215.78 = 251,425.75 : x
  2. Step 2: Convert to fraction form
    401,080.56/601,215.78 = 251,425.75/x
  3. Step 3: Cross multiply
    401,080.56x = 601,215.78 × 251,425.75
  4. Step 4: Simplify right side
    401,080.56x = 151,161,128,398.34
  5. Step 5: Solve for x
    x = 151,161,128,398.34/401,080.56
  6. Step 6: Final answer
    x = 376,884.70

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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.