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Finding the Fourth Proportional to 219,448.10, 329,172.15 and 207,200.90

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Solution

The fourth proportional to 219,448.10, 329,172.15 and 207,200.90 is: 310,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,448.10 : 329,172.15 = 207,200.90 : x
  2. Step 2: Convert to fraction form
    219,448.10/329,172.15 = 207,200.90/x
  3. Step 3: Cross multiply
    219,448.10x = 329,172.15 × 207,200.90
  4. Step 4: Simplify right side
    219,448.10x = 68,204,765,734.94
  5. Step 5: Solve for x
    x = 68,204,765,734.94/219,448.10
  6. Step 6: Final answer
    x = 310,801.35

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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.