Home / 378,342.29-522,116.40-208,582.49

Finding the Fourth Proportional to 378,342.29, 522,116.40 and 208,582.49

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Solution

The fourth proportional to 378,342.29, 522,116.40 and 208,582.49 is: 287,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,342.29 : 522,116.40 = 208,582.49 : x
  2. Step 2: Convert to fraction form
    378,342.29/522,116.40 = 208,582.49/x
  3. Step 3: Cross multiply
    378,342.29x = 522,116.40 × 208,582.49
  4. Step 4: Simplify right side
    378,342.29x = 108,904,336,171.25
  5. Step 5: Solve for x
    x = 108,904,336,171.25/378,342.29
  6. Step 6: Final answer
    x = 287,846.06

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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.