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Finding the Fourth Proportional to 361,585.20, 498,978.96 and 208,623.72

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Solution

The fourth proportional to 361,585.20, 498,978.96 and 208,623.72 is: 287,895.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,585.20 : 498,978.96 = 208,623.72 : x
  2. Step 2: Convert to fraction form
    361,585.20/498,978.96 = 208,623.72/x
  3. Step 3: Cross multiply
    361,585.20x = 498,978.96 × 208,623.72
  4. Step 4: Simplify right side
    361,585.20x = 104,098,846,836.93
  5. Step 5: Solve for x
    x = 104,098,846,836.93/361,585.20
  6. Step 6: Final answer
    x = 287,895.76

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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.