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Finding the Fourth Proportional to 323,440.60, 446,045.29 and 255,619.61

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Solution

The fourth proportional to 323,440.60, 446,045.29 and 255,619.61 is: 352,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,440.60 : 446,045.29 = 255,619.61 : x
  2. Step 2: Convert to fraction form
    323,440.60/446,045.29 = 255,619.61/x
  3. Step 3: Cross multiply
    323,440.60x = 446,045.29 × 255,619.61
  4. Step 4: Simplify right side
    323,440.60x = 114,017,923,072.14
  5. Step 5: Solve for x
    x = 114,017,923,072.14/323,440.60
  6. Step 6: Final answer
    x = 352,515.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.