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Finding the Fourth Proportional to 216,843.30, 325,252.80 and 67,082.40

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Solution

The fourth proportional to 216,843.30, 325,252.80 and 67,082.40 is: 100,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,843.30 : 325,252.80 = 67,082.40 : x
  2. Step 2: Convert to fraction form
    216,843.30/325,252.80 = 67,082.40/x
  3. Step 3: Cross multiply
    216,843.30x = 325,252.80 × 67,082.40
  4. Step 4: Simplify right side
    216,843.30x = 21,818,738,430.72
  5. Step 5: Solve for x
    x = 21,818,738,430.72/216,843.30
  6. Step 6: Final answer
    x = 100,619.84

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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.