Home / 378,584.64-522,438.72-208,834.56

Finding the Fourth Proportional to 378,584.64, 522,438.72 and 208,834.56

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Solution

The fourth proportional to 378,584.64, 522,438.72 and 208,834.56 is: 288,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,584.64 : 522,438.72 = 208,834.56 : x
  2. Step 2: Convert to fraction form
    378,584.64/522,438.72 = 208,834.56/x
  3. Step 3: Cross multiply
    378,584.64x = 522,438.72 × 208,834.56
  4. Step 4: Simplify right side
    378,584.64x = 109,103,260,218.16
  5. Step 5: Solve for x
    x = 109,103,260,218.16/378,584.64
  6. Step 6: Final answer
    x = 288,187.23

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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.