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Finding the Fourth Proportional to 378,304.04, 522,060.72 and 208,534.52

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Solution

The fourth proportional to 378,304.04, 522,060.72 and 208,534.52 is: 287,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,304.04 : 522,060.72 = 208,534.52 : x
  2. Step 2: Convert to fraction form
    378,304.04/522,060.72 = 208,534.52/x
  3. Step 3: Cross multiply
    378,304.04x = 522,060.72 × 208,534.52
  4. Step 4: Simplify right side
    378,304.04x = 108,867,681,656.05
  5. Step 5: Solve for x
    x = 108,867,681,656.05/378,304.04
  6. Step 6: Final answer
    x = 287,778.27

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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.