Home / 211,984.40-317,976.60-165,328.40

Finding the Fourth Proportional to 211,984.40, 317,976.60 and 165,328.40

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Solution

The fourth proportional to 211,984.40, 317,976.60 and 165,328.40 is: 247,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,984.40 : 317,976.60 = 165,328.40 : x
  2. Step 2: Convert to fraction form
    211,984.40/317,976.60 = 165,328.40/x
  3. Step 3: Cross multiply
    211,984.40x = 317,976.60 × 165,328.40
  4. Step 4: Simplify right side
    211,984.40x = 52,570,562,515.44
  5. Step 5: Solve for x
    x = 52,570,562,515.44/211,984.40
  6. Step 6: Final answer
    x = 247,992.60

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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.