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Finding the Fourth Proportional to 201,249.80, 278,008.20 and 190,620.98

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Solution

The fourth proportional to 201,249.80, 278,008.20 and 190,620.98 is: 263,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,249.80 : 278,008.20 = 190,620.98 : x
  2. Step 2: Convert to fraction form
    201,249.80/278,008.20 = 190,620.98/x
  3. Step 3: Cross multiply
    201,249.80x = 278,008.20 × 190,620.98
  4. Step 4: Simplify right side
    201,249.80x = 52,994,195,532.04
  5. Step 5: Solve for x
    x = 52,994,195,532.04/201,249.80
  6. Step 6: Final answer
    x = 263,325.46

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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.