Home / 211,255.26-315,244.97-188,821.50

Finding the Fourth Proportional to 211,255.26, 315,244.97 and 188,821.50

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Solution

The fourth proportional to 211,255.26, 315,244.97 and 188,821.50 is: 281,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,255.26 : 315,244.97 = 188,821.50 : x
  2. Step 2: Convert to fraction form
    211,255.26/315,244.97 = 188,821.50/x
  3. Step 3: Cross multiply
    211,255.26x = 315,244.97 × 188,821.50
  4. Step 4: Simplify right side
    211,255.26x = 59,525,027,158.75
  5. Step 5: Solve for x
    x = 59,525,027,158.75/211,255.26
  6. Step 6: Final answer
    x = 281,768.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.