Home / 380,611.26-525,236.31-210,846.78

Finding the Fourth Proportional to 380,611.26, 525,236.31 and 210,846.78

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Solution

The fourth proportional to 380,611.26, 525,236.31 and 210,846.78 is: 290,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,611.26 : 525,236.31 = 210,846.78 : x
  2. Step 2: Convert to fraction form
    380,611.26/525,236.31 = 210,846.78/x
  3. Step 3: Cross multiply
    380,611.26x = 525,236.31 × 210,846.78
  4. Step 4: Simplify right side
    380,611.26x = 110,744,384,702.58
  5. Step 5: Solve for x
    x = 110,744,384,702.58/380,611.26
  6. Step 6: Final answer
    x = 290,964.55

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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.