Home / 378,633.24-522,515.66-208,867.36

Finding the Fourth Proportional to 378,633.24, 522,515.66 and 208,867.36

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Solution

The fourth proportional to 378,633.24, 522,515.66 and 208,867.36 is: 288,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,633.24 : 522,515.66 = 208,867.36 : x
  2. Step 2: Convert to fraction form
    378,633.24/522,515.66 = 208,867.36/x
  3. Step 3: Cross multiply
    378,633.24x = 522,515.66 × 208,867.36
  4. Step 4: Simplify right side
    378,633.24x = 109,136,466,462.86
  5. Step 5: Solve for x
    x = 109,136,466,462.86/378,633.24
  6. Step 6: Final answer
    x = 288,237.94

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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.