Home / 378,948.93-522,950.22-209,183.19

Finding the Fourth Proportional to 378,948.93, 522,950.22 and 209,183.19

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Solution

The fourth proportional to 378,948.93, 522,950.22 and 209,183.19 is: 288,673.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,948.93 : 522,950.22 = 209,183.19 : x
  2. Step 2: Convert to fraction form
    378,948.93/522,950.22 = 209,183.19/x
  3. Step 3: Cross multiply
    378,948.93x = 522,950.22 × 209,183.19
  4. Step 4: Simplify right side
    378,948.93x = 109,392,395,230.80
  5. Step 5: Solve for x
    x = 109,392,395,230.80/378,948.93
  6. Step 6: Final answer
    x = 288,673.19

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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.