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Finding the Fourth Proportional to 358,539.60, 537,809.40 and 199,107.30

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Solution

The fourth proportional to 358,539.60, 537,809.40 and 199,107.30 is: 298,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,539.60 : 537,809.40 = 199,107.30 : x
  2. Step 2: Convert to fraction form
    358,539.60/537,809.40 = 199,107.30/x
  3. Step 3: Cross multiply
    358,539.60x = 537,809.40 × 199,107.30
  4. Step 4: Simplify right side
    358,539.60x = 107,081,777,548.62
  5. Step 5: Solve for x
    x = 107,081,777,548.62/358,539.60
  6. Step 6: Final answer
    x = 298,660.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.