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Finding the Fourth Proportional to 219,955.50, 303,539.40 and 119,353.50

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Solution

The fourth proportional to 219,955.50, 303,539.40 and 119,353.50 is: 164,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,955.50 : 303,539.40 = 119,353.50 : x
  2. Step 2: Convert to fraction form
    219,955.50/303,539.40 = 119,353.50/x
  3. Step 3: Cross multiply
    219,955.50x = 303,539.40 × 119,353.50
  4. Step 4: Simplify right side
    219,955.50x = 36,228,489,777.90
  5. Step 5: Solve for x
    x = 36,228,489,777.90/219,955.50
  6. Step 6: Final answer
    x = 164,708.27

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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.