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Finding the Fourth Proportional to 216,923.62, 325,369.02 and 67,165.15

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Solution

The fourth proportional to 216,923.62, 325,369.02 and 67,165.15 is: 100,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,923.62 : 325,369.02 = 67,165.15 : x
  2. Step 2: Convert to fraction form
    216,923.62/325,369.02 = 67,165.15/x
  3. Step 3: Cross multiply
    216,923.62x = 325,369.02 × 67,165.15
  4. Step 4: Simplify right side
    216,923.62x = 21,853,459,033.65
  5. Step 5: Solve for x
    x = 21,853,459,033.65/216,923.62
  6. Step 6: Final answer
    x = 100,742.64

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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.