Home / 218,980.43-302,193.83-122,188.37

Finding the Fourth Proportional to 218,980.43, 302,193.83 and 122,188.37

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Solution

The fourth proportional to 218,980.43, 302,193.83 and 122,188.37 is: 168,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,980.43 : 302,193.83 = 122,188.37 : x
  2. Step 2: Convert to fraction form
    218,980.43/302,193.83 = 122,188.37/x
  3. Step 3: Cross multiply
    218,980.43x = 302,193.83 × 122,188.37
  4. Step 4: Simplify right side
    218,980.43x = 36,924,570,261.00
  5. Step 5: Solve for x
    x = 36,924,570,261.00/218,980.43
  6. Step 6: Final answer
    x = 168,620.41

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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.