Home / 262,865.45-394,330.95-102,920.73

Finding the Fourth Proportional to 262,865.45, 394,330.95 and 102,920.73

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Solution

The fourth proportional to 262,865.45, 394,330.95 and 102,920.73 is: 154,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,865.45 : 394,330.95 = 102,920.73 : x
  2. Step 2: Convert to fraction form
    262,865.45/394,330.95 = 102,920.73/x
  3. Step 3: Cross multiply
    262,865.45x = 394,330.95 × 102,920.73
  4. Step 4: Simplify right side
    262,865.45x = 40,584,829,235.59
  5. Step 5: Solve for x
    x = 40,584,829,235.59/262,865.45
  6. Step 6: Final answer
    x = 154,393.93

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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.