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Finding the Fourth Proportional to 401,077.07, 601,210.77 and 251,422.46

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Solution

The fourth proportional to 401,077.07, 601,210.77 and 251,422.46 is: 376,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,077.07 : 601,210.77 = 251,422.46 : x
  2. Step 2: Convert to fraction form
    401,077.07/601,210.77 = 251,422.46/x
  3. Step 3: Cross multiply
    401,077.07x = 601,210.77 × 251,422.46
  4. Step 4: Simplify right side
    401,077.07x = 151,157,887,765.84
  5. Step 5: Solve for x
    x = 151,157,887,765.84/401,077.07
  6. Step 6: Final answer
    x = 376,879.91

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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.