Home / 405,442.72-559,418.15-242,067.48

Finding the Fourth Proportional to 405,442.72, 559,418.15 and 242,067.48

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Solution

The fourth proportional to 405,442.72, 559,418.15 and 242,067.48 is: 333,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,442.72 : 559,418.15 = 242,067.48 : x
  2. Step 2: Convert to fraction form
    405,442.72/559,418.15 = 242,067.48/x
  3. Step 3: Cross multiply
    405,442.72x = 559,418.15 × 242,067.48
  4. Step 4: Simplify right side
    405,442.72x = 135,416,942,932.72
  5. Step 5: Solve for x
    x = 135,416,942,932.72/405,442.72
  6. Step 6: Final answer
    x = 333,997.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.