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Finding the Fourth Proportional to 214,880.20, 322,320.30 and 199,328.20

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Solution

The fourth proportional to 214,880.20, 322,320.30 and 199,328.20 is: 298,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,880.20 : 322,320.30 = 199,328.20 : x
  2. Step 2: Convert to fraction form
    214,880.20/322,320.30 = 199,328.20/x
  3. Step 3: Cross multiply
    214,880.20x = 322,320.30 × 199,328.20
  4. Step 4: Simplify right side
    214,880.20x = 64,247,525,222.46
  5. Step 5: Solve for x
    x = 64,247,525,222.46/214,880.20
  6. Step 6: Final answer
    x = 298,992.30

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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.