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Finding the Fourth Proportional to 275,775.31, 380,528.48 and 154,893.44

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Solution

The fourth proportional to 275,775.31, 380,528.48 and 154,893.44 is: 213,729.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,775.31 : 380,528.48 = 154,893.44 : x
  2. Step 2: Convert to fraction form
    275,775.31/380,528.48 = 154,893.44/x
  3. Step 3: Cross multiply
    275,775.31x = 380,528.48 × 154,893.44
  4. Step 4: Simplify right side
    275,775.31x = 58,941,366,042.88
  5. Step 5: Solve for x
    x = 58,941,366,042.88/275,775.31
  6. Step 6: Final answer
    x = 213,729.67

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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.