Home / 218,822.39-301,974.87-118,220.39

Finding the Fourth Proportional to 218,822.39, 301,974.87 and 118,220.39

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Solution

The fourth proportional to 218,822.39, 301,974.87 and 118,220.39 is: 163,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.39 : 301,974.87 = 118,220.39 : x
  2. Step 2: Convert to fraction form
    218,822.39/301,974.87 = 118,220.39/x
  3. Step 3: Cross multiply
    218,822.39x = 301,974.87 × 118,220.39
  4. Step 4: Simplify right side
    218,822.39x = 35,699,586,901.60
  5. Step 5: Solve for x
    x = 35,699,586,901.60/218,822.39
  6. Step 6: Final answer
    x = 163,144.12

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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.