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Finding the Fourth Proportional to 275,576.58, 380,263.01 and 154,691.37

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Solution

The fourth proportional to 275,576.58, 380,263.01 and 154,691.37 is: 213,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,576.58 : 380,263.01 = 154,691.37 : x
  2. Step 2: Convert to fraction form
    275,576.58/380,263.01 = 154,691.37/x
  3. Step 3: Cross multiply
    275,576.58x = 380,263.01 × 154,691.37
  4. Step 4: Simplify right side
    275,576.58x = 58,823,405,203.77
  5. Step 5: Solve for x
    x = 58,823,405,203.77/275,576.58
  6. Step 6: Final answer
    x = 213,455.75

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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.