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Finding the Fourth Proportional to 321,699.59, 482,795.72 and 231,699.07

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Solution

The fourth proportional to 321,699.59, 482,795.72 and 231,699.07 is: 347,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,699.59 : 482,795.72 = 231,699.07 : x
  2. Step 2: Convert to fraction form
    321,699.59/482,795.72 = 231,699.07/x
  3. Step 3: Cross multiply
    321,699.59x = 482,795.72 × 231,699.07
  4. Step 4: Simplify right side
    321,699.59x = 111,863,319,323.98
  5. Step 5: Solve for x
    x = 111,863,319,323.98/321,699.59
  6. Step 6: Final answer
    x = 347,726.02

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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.