Home / 378,623.64-522,510.48-206,544.56

Finding the Fourth Proportional to 378,623.64, 522,510.48 and 206,544.56

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Solution

The fourth proportional to 378,623.64, 522,510.48 and 206,544.56 is: 285,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,623.64 : 522,510.48 = 206,544.56 : x
  2. Step 2: Convert to fraction form
    378,623.64/522,510.48 = 206,544.56/x
  3. Step 3: Cross multiply
    378,623.64x = 522,510.48 × 206,544.56
  4. Step 4: Simplify right side
    378,623.64x = 107,921,697,186.99
  5. Step 5: Solve for x
    x = 107,921,697,186.99/378,623.64
  6. Step 6: Final answer
    x = 285,036.87

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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.