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Finding the Fourth Proportional to 313,851.80, 470,777.70 and 100,619.30

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Solution

The fourth proportional to 313,851.80, 470,777.70 and 100,619.30 is: 150,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,851.80 : 470,777.70 = 100,619.30 : x
  2. Step 2: Convert to fraction form
    313,851.80/470,777.70 = 100,619.30/x
  3. Step 3: Cross multiply
    313,851.80x = 470,777.70 × 100,619.30
  4. Step 4: Simplify right side
    313,851.80x = 47,369,322,629.61
  5. Step 5: Solve for x
    x = 47,369,322,629.61/313,851.80
  6. Step 6: Final answer
    x = 150,928.95

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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.