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Finding the Fourth Proportional to 275,523.35, 380,222.03 and 154,664.87

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Solution

The fourth proportional to 275,523.35, 380,222.03 and 154,664.87 is: 213,437.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,523.35 : 380,222.03 = 154,664.87 : x
  2. Step 2: Convert to fraction form
    275,523.35/380,222.03 = 154,664.87/x
  3. Step 3: Cross multiply
    275,523.35x = 380,222.03 × 154,664.87
  4. Step 4: Simplify right side
    275,523.35x = 58,806,989,326.64
  5. Step 5: Solve for x
    x = 58,806,989,326.64/275,523.35
  6. Step 6: Final answer
    x = 213,437.41

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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.