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Finding the Fourth Proportional to 216,373.68, 324,591.48 and 66,626.64

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Solution

The fourth proportional to 216,373.68, 324,591.48 and 66,626.64 is: 99,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,373.68 : 324,591.48 = 66,626.64 : x
  2. Step 2: Convert to fraction form
    216,373.68/324,591.48 = 66,626.64/x
  3. Step 3: Cross multiply
    216,373.68x = 324,591.48 × 66,626.64
  4. Step 4: Simplify right side
    216,373.68x = 21,626,439,685.03
  5. Step 5: Solve for x
    x = 21,626,439,685.03/216,373.68
  6. Step 6: Final answer
    x = 99,949.49

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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.