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Finding the Fourth Proportional to 219,835.37, 303,405.42 and 139,270.37

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Solution

The fourth proportional to 219,835.37, 303,405.42 and 139,270.37 is: 192,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,835.37 : 303,405.42 = 139,270.37 : x
  2. Step 2: Convert to fraction form
    219,835.37/303,405.42 = 139,270.37/x
  3. Step 3: Cross multiply
    219,835.37x = 303,405.42 × 139,270.37
  4. Step 4: Simplify right side
    219,835.37x = 42,255,385,103.41
  5. Step 5: Solve for x
    x = 42,255,385,103.41/219,835.37
  6. Step 6: Final answer
    x = 192,213.77

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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.