Home / 380,840.44-525,560.22-211,074.70

Finding the Fourth Proportional to 380,840.44, 525,560.22 and 211,074.70

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Solution

The fourth proportional to 380,840.44, 525,560.22 and 211,074.70 is: 291,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,840.44 : 525,560.22 = 211,074.70 : x
  2. Step 2: Convert to fraction form
    380,840.44/525,560.22 = 211,074.70/x
  3. Step 3: Cross multiply
    380,840.44x = 525,560.22 × 211,074.70
  4. Step 4: Simplify right side
    380,840.44x = 110,932,465,768.43
  5. Step 5: Solve for x
    x = 110,932,465,768.43/380,840.44
  6. Step 6: Final answer
    x = 291,283.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.