Home / 218,617.02-327,971.61-70,861.50

Finding the Fourth Proportional to 218,617.02, 327,971.61 and 70,861.50

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Solution

The fourth proportional to 218,617.02, 327,971.61 and 70,861.50 is: 106,307.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,617.02 : 327,971.61 = 70,861.50 : x
  2. Step 2: Convert to fraction form
    218,617.02/327,971.61 = 70,861.50/x
  3. Step 3: Cross multiply
    218,617.02x = 327,971.61 × 70,861.50
  4. Step 4: Simplify right side
    218,617.02x = 23,240,560,242.02
  5. Step 5: Solve for x
    x = 23,240,560,242.02/218,617.02
  6. Step 6: Final answer
    x = 106,307.19

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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.