Home / 405,380.17-608,156.52-121,067.74

Finding the Fourth Proportional to 405,380.17, 608,156.52 and 121,067.74

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Solution

The fourth proportional to 405,380.17, 608,156.52 and 121,067.74 is: 181,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,380.17 : 608,156.52 = 121,067.74 : x
  2. Step 2: Convert to fraction form
    405,380.17/608,156.52 = 121,067.74/x
  3. Step 3: Cross multiply
    405,380.17x = 608,156.52 × 121,067.74
  4. Step 4: Simplify right side
    405,380.17x = 73,628,135,442.66
  5. Step 5: Solve for x
    x = 73,628,135,442.66/405,380.17
  6. Step 6: Final answer
    x = 181,627.37

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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.