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Finding the Fourth Proportional to 305,467.48, 458,379.86 and 127,959.48

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Solution

The fourth proportional to 305,467.48, 458,379.86 and 127,959.48 is: 192,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,467.48 : 458,379.86 = 127,959.48 : x
  2. Step 2: Convert to fraction form
    305,467.48/458,379.86 = 127,959.48/x
  3. Step 3: Cross multiply
    305,467.48x = 458,379.86 × 127,959.48
  4. Step 4: Simplify right side
    305,467.48x = 58,654,048,528.07
  5. Step 5: Solve for x
    x = 58,654,048,528.07/305,467.48
  6. Step 6: Final answer
    x = 192,014.05

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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.