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Finding the Fourth Proportional to 221,336.34, 305,440.53 and 125,840.98

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Solution

The fourth proportional to 221,336.34, 305,440.53 and 125,840.98 is: 173,658.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336.34 : 305,440.53 = 125,840.98 : x
  2. Step 2: Convert to fraction form
    221,336.34/305,440.53 = 125,840.98/x
  3. Step 3: Cross multiply
    221,336.34x = 305,440.53 × 125,840.98
  4. Step 4: Simplify right side
    221,336.34x = 38,436,935,626.92
  5. Step 5: Solve for x
    x = 38,436,935,626.92/221,336.34
  6. Step 6: Final answer
    x = 173,658.49

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