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Finding the Fourth Proportional to 378,367.08, 522,150.08 and 208,607.28

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Solution

The fourth proportional to 378,367.08, 522,150.08 and 208,607.28 is: 287,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,367.08 : 522,150.08 = 208,607.28 : x
  2. Step 2: Convert to fraction form
    378,367.08/522,150.08 = 208,607.28/x
  3. Step 3: Cross multiply
    378,367.08x = 522,150.08 × 208,607.28
  4. Step 4: Simplify right side
    378,367.08x = 108,924,306,897.55
  5. Step 5: Solve for x
    x = 108,924,306,897.55/378,367.08
  6. Step 6: Final answer
    x = 287,879.98

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1.5x scale

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.