Home / 378,835.56-567,989.82-191,719.08

Finding the Fourth Proportional to 378,835.56, 567,989.82 and 191,719.08

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Solution

The fourth proportional to 378,835.56, 567,989.82 and 191,719.08 is: 287,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,835.56 : 567,989.82 = 191,719.08 : x
  2. Step 2: Convert to fraction form
    378,835.56/567,989.82 = 191,719.08/x
  3. Step 3: Cross multiply
    378,835.56x = 567,989.82 × 191,719.08
  4. Step 4: Simplify right side
    378,835.56x = 108,894,485,739.77
  5. Step 5: Solve for x
    x = 108,894,485,739.77/378,835.56
  6. Step 6: Final answer
    x = 287,445.26

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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.