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Finding the Fourth Proportional to 441,841.40, 663,107.70 and 205,213.40

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Solution

The fourth proportional to 441,841.40, 663,107.70 and 205,213.40 is: 307,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,841.40 : 663,107.70 = 205,213.40 : x
  2. Step 2: Convert to fraction form
    441,841.40/663,107.70 = 205,213.40/x
  3. Step 3: Cross multiply
    441,841.40x = 663,107.70 × 205,213.40
  4. Step 4: Simplify right side
    441,841.40x = 136,078,585,683.18
  5. Step 5: Solve for x
    x = 136,078,585,683.18/441,841.40
  6. Step 6: Final answer
    x = 307,980.61

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1.5x scale

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.