Home / 313,982.20-471,002.10-103,620.60

Finding the Fourth Proportional to 313,982.20, 471,002.10 and 103,620.60

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Solution

The fourth proportional to 313,982.20, 471,002.10 and 103,620.60 is: 155,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,982.20 : 471,002.10 = 103,620.60 : x
  2. Step 2: Convert to fraction form
    313,982.20/471,002.10 = 103,620.60/x
  3. Step 3: Cross multiply
    313,982.20x = 471,002.10 × 103,620.60
  4. Step 4: Simplify right side
    313,982.20x = 48,805,520,203.26
  5. Step 5: Solve for x
    x = 48,805,520,203.26/313,982.20
  6. Step 6: Final answer
    x = 155,440.40

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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.