Home / 305,090.96-457,641.19-115,500.43

Finding the Fourth Proportional to 305,090.96, 457,641.19 and 115,500.43

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Solution

The fourth proportional to 305,090.96, 457,641.19 and 115,500.43 is: 173,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,090.96 : 457,641.19 = 115,500.43 : x
  2. Step 2: Convert to fraction form
    305,090.96/457,641.19 = 115,500.43/x
  3. Step 3: Cross multiply
    305,090.96x = 457,641.19 × 115,500.43
  4. Step 4: Simplify right side
    305,090.96x = 52,857,753,653.21
  5. Step 5: Solve for x
    x = 52,857,753,653.21/305,090.96
  6. Step 6: Final answer
    x = 173,252.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.