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Finding the Fourth Proportional to 275,168.30, 379,218.06 and 214,643.07

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Solution

The fourth proportional to 275,168.30, 379,218.06 and 214,643.07 is: 295,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,168.30 : 379,218.06 = 214,643.07 : x
  2. Step 2: Convert to fraction form
    275,168.30/379,218.06 = 214,643.07/x
  3. Step 3: Cross multiply
    275,168.30x = 379,218.06 × 214,643.07
  4. Step 4: Simplify right side
    275,168.30x = 81,396,528,597.84
  5. Step 5: Solve for x
    x = 81,396,528,597.84/275,168.30
  6. Step 6: Final answer
    x = 295,806.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.