Home / 378,023.76-567,387-191,169.36

Finding the Fourth Proportional to 378,023.76, 567,387 and 191,169.36

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Solution

The fourth proportional to 378,023.76, 567,387 and 191,169.36 is: 286,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,023.76 : 567,387 = 191,169.36 : x
  2. Step 2: Convert to fraction form
    378,023.76/567,387 = 191,169.36/x
  3. Step 3: Cross multiply
    378,023.76x = 567,387 × 191,169.36
  4. Step 4: Simplify right side
    378,023.76x = 108,467,009,662.32
  5. Step 5: Solve for x
    x = 108,467,009,662.32/378,023.76
  6. Step 6: Final answer
    x = 286,931.73

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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.