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Finding the Fourth Proportional to 218,622.02, 327,866.83 and 76,440.80

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Solution

The fourth proportional to 218,622.02, 327,866.83 and 76,440.80 is: 114,638.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,622.02 : 327,866.83 = 76,440.80 : x
  2. Step 2: Convert to fraction form
    218,622.02/327,866.83 = 76,440.80/x
  3. Step 3: Cross multiply
    218,622.02x = 327,866.83 × 76,440.80
  4. Step 4: Simplify right side
    218,622.02x = 25,062,403,407.23
  5. Step 5: Solve for x
    x = 25,062,403,407.23/218,622.02
  6. Step 6: Final answer
    x = 114,638.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.