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Finding the Fourth Proportional to 319,407.41, 479,443.41 and 235,262.58

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Solution

The fourth proportional to 319,407.41, 479,443.41 and 235,262.58 is: 353,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,407.41 : 479,443.41 = 235,262.58 : x
  2. Step 2: Convert to fraction form
    319,407.41/479,443.41 = 235,262.58/x
  3. Step 3: Cross multiply
    319,407.41x = 479,443.41 × 235,262.58
  4. Step 4: Simplify right side
    319,407.41x = 112,795,093,600.60
  5. Step 5: Solve for x
    x = 112,795,093,600.60/319,407.41
  6. Step 6: Final answer
    x = 353,138.63

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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.