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Finding the Fourth Proportional to 218,172.16, 327,262.29 and 68,409.10

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Solution

The fourth proportional to 218,172.16, 327,262.29 and 68,409.10 is: 102,614.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,172.16 : 327,262.29 = 68,409.10 : x
  2. Step 2: Convert to fraction form
    218,172.16/327,262.29 = 68,409.10/x
  3. Step 3: Cross multiply
    218,172.16x = 327,262.29 × 68,409.10
  4. Step 4: Simplify right side
    218,172.16x = 22,387,718,722.84
  5. Step 5: Solve for x
    x = 22,387,718,722.84/218,172.16
  6. Step 6: Final answer
    x = 102,614.92

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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.