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Finding the Fourth Proportional to 275,573.64, 380,298.60 and 154,724.34

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Solution

The fourth proportional to 275,573.64, 380,298.60 and 154,724.34 is: 213,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,573.64 : 380,298.60 = 154,724.34 : x
  2. Step 2: Convert to fraction form
    275,573.64/380,298.60 = 154,724.34/x
  3. Step 3: Cross multiply
    275,573.64x = 380,298.60 × 154,724.34
  4. Step 4: Simplify right side
    275,573.64x = 58,841,449,887.92
  5. Step 5: Solve for x
    x = 58,841,449,887.92/275,573.64
  6. Step 6: Final answer
    x = 213,523.51

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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.