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Finding the Fourth Proportional to 296,815.80, 445,223.70 and 259,951.80

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Solution

The fourth proportional to 296,815.80, 445,223.70 and 259,951.80 is: 389,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,815.80 : 445,223.70 = 259,951.80 : x
  2. Step 2: Convert to fraction form
    296,815.80/445,223.70 = 259,951.80/x
  3. Step 3: Cross multiply
    296,815.80x = 445,223.70 × 259,951.80
  4. Step 4: Simplify right side
    296,815.80x = 115,736,702,217.66
  5. Step 5: Solve for x
    x = 115,736,702,217.66/296,815.80
  6. Step 6: Final answer
    x = 389,927.70

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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.