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Finding the Fourth Proportional to 216,692.58, 325,017 and 66,892.26

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Solution

The fourth proportional to 216,692.58, 325,017 and 66,892.26 is: 100,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,692.58 : 325,017 = 66,892.26 : x
  2. Step 2: Convert to fraction form
    216,692.58/325,017 = 66,892.26/x
  3. Step 3: Cross multiply
    216,692.58x = 325,017 × 66,892.26
  4. Step 4: Simplify right side
    216,692.58x = 21,741,121,668.42
  5. Step 5: Solve for x
    x = 21,741,121,668.42/216,692.58
  6. Step 6: Final answer
    x = 100,331.64

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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.