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Finding the Fourth Proportional to 321,125.93, 481,713.80 and 96,468.78

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Solution

The fourth proportional to 321,125.93, 481,713.80 and 96,468.78 is: 144,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,125.93 : 481,713.80 = 96,468.78 : x
  2. Step 2: Convert to fraction form
    321,125.93/481,713.80 = 96,468.78/x
  3. Step 3: Cross multiply
    321,125.93x = 481,713.80 × 96,468.78
  4. Step 4: Simplify right side
    321,125.93x = 46,470,342,112.82
  5. Step 5: Solve for x
    x = 46,470,342,112.82/321,125.93
  6. Step 6: Final answer
    x = 144,710.65

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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.