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Finding the Fourth Proportional to 281,755.80, 422,633.70 and 163,730.70

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Solution

The fourth proportional to 281,755.80, 422,633.70 and 163,730.70 is: 245,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,755.80 : 422,633.70 = 163,730.70 : x
  2. Step 2: Convert to fraction form
    281,755.80/422,633.70 = 163,730.70/x
  3. Step 3: Cross multiply
    281,755.80x = 422,633.70 × 163,730.70
  4. Step 4: Simplify right side
    281,755.80x = 69,198,111,544.59
  5. Step 5: Solve for x
    x = 69,198,111,544.59/281,755.80
  6. Step 6: Final answer
    x = 245,596.05

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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.