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Finding the Fourth Proportional to 304,863.32, 420,690.30 and 168,884.57

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Solution

The fourth proportional to 304,863.32, 420,690.30 and 168,884.57 is: 233,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,863.32 : 420,690.30 = 168,884.57 : x
  2. Step 2: Convert to fraction form
    304,863.32/420,690.30 = 168,884.57/x
  3. Step 3: Cross multiply
    304,863.32x = 420,690.30 × 168,884.57
  4. Step 4: Simplify right side
    304,863.32x = 71,048,100,418.67
  5. Step 5: Solve for x
    x = 71,048,100,418.67/304,863.32
  6. Step 6: Final answer
    x = 233,049.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.