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Finding the Fourth Proportional to 272,604.10, 408,906.15 and 255,108.10

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Solution

The fourth proportional to 272,604.10, 408,906.15 and 255,108.10 is: 382,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,604.10 : 408,906.15 = 255,108.10 : x
  2. Step 2: Convert to fraction form
    272,604.10/408,906.15 = 255,108.10/x
  3. Step 3: Cross multiply
    272,604.10x = 408,906.15 × 255,108.10
  4. Step 4: Simplify right side
    272,604.10x = 104,315,271,004.82
  5. Step 5: Solve for x
    x = 104,315,271,004.82/272,604.10
  6. Step 6: Final answer
    x = 382,662.15

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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.