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Finding the Fourth Proportional to 201,343.80, 302,015.70 and 82,954.20

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Solution

The fourth proportional to 201,343.80, 302,015.70 and 82,954.20 is: 124,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,343.80 : 302,015.70 = 82,954.20 : x
  2. Step 2: Convert to fraction form
    201,343.80/302,015.70 = 82,954.20/x
  3. Step 3: Cross multiply
    201,343.80x = 302,015.70 × 82,954.20
  4. Step 4: Simplify right side
    201,343.80x = 25,053,470,780.94
  5. Step 5: Solve for x
    x = 25,053,470,780.94/201,343.80
  6. Step 6: Final answer
    x = 124,431.30

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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.