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Finding the Fourth Proportional to 275,708.08, 380,621.68 and 185,538.16

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Solution

The fourth proportional to 275,708.08, 380,621.68 and 185,538.16 is: 256,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,708.08 : 380,621.68 = 185,538.16 : x
  2. Step 2: Convert to fraction form
    275,708.08/380,621.68 = 185,538.16/x
  3. Step 3: Cross multiply
    275,708.08x = 380,621.68 × 185,538.16
  4. Step 4: Simplify right side
    275,708.08x = 70,619,846,163.31
  5. Step 5: Solve for x
    x = 70,619,846,163.31/275,708.08
  6. Step 6: Final answer
    x = 256,139.92

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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.