Home / 313,992.20-471,017.10-103,630.60

Finding the Fourth Proportional to 313,992.20, 471,017.10 and 103,630.60

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Solution

The fourth proportional to 313,992.20, 471,017.10 and 103,630.60 is: 155,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,992.20 : 471,017.10 = 103,630.60 : x
  2. Step 2: Convert to fraction form
    313,992.20/471,017.10 = 103,630.60/x
  3. Step 3: Cross multiply
    313,992.20x = 471,017.10 × 103,630.60
  4. Step 4: Simplify right side
    313,992.20x = 48,811,784,683.26
  5. Step 5: Solve for x
    x = 48,811,784,683.26/313,992.20
  6. Step 6: Final answer
    x = 155,455.41

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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.