Home / 378,329.41-522,098.10-208,569.61

Finding the Fourth Proportional to 378,329.41, 522,098.10 and 208,569.61

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Solution

The fourth proportional to 378,329.41, 522,098.10 and 208,569.61 is: 287,828.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,329.41 : 522,098.10 = 208,569.61 : x
  2. Step 2: Convert to fraction form
    378,329.41/522,098.10 = 208,569.61/x
  3. Step 3: Cross multiply
    378,329.41x = 522,098.10 × 208,569.61
  4. Step 4: Simplify right side
    378,329.41x = 108,893,797,098.74
  5. Step 5: Solve for x
    x = 108,893,797,098.74/378,329.41
  6. Step 6: Final answer
    x = 287,828.00

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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.