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Finding the Fourth Proportional to 301,097.70, 451,646.55 and 206,619.30

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Solution

The fourth proportional to 301,097.70, 451,646.55 and 206,619.30 is: 309,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,097.70 : 451,646.55 = 206,619.30 : x
  2. Step 2: Convert to fraction form
    301,097.70/451,646.55 = 206,619.30/x
  3. Step 3: Cross multiply
    301,097.70x = 451,646.55 × 206,619.30
  4. Step 4: Simplify right side
    301,097.70x = 93,318,894,008.42
  5. Step 5: Solve for x
    x = 93,318,894,008.42/301,097.70
  6. Step 6: Final answer
    x = 309,928.95

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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.