Home / 250,450.32-345,619.48-137,272.80

Finding the Fourth Proportional to 250,450.32, 345,619.48 and 137,272.80

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Solution

The fourth proportional to 250,450.32, 345,619.48 and 137,272.80 is: 189,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,450.32 : 345,619.48 = 137,272.80 : x
  2. Step 2: Convert to fraction form
    250,450.32/345,619.48 = 137,272.80/x
  3. Step 3: Cross multiply
    250,450.32x = 345,619.48 × 137,272.80
  4. Step 4: Simplify right side
    250,450.32x = 47,444,153,754.14
  5. Step 5: Solve for x
    x = 47,444,153,754.14/250,450.32
  6. Step 6: Final answer
    x = 189,435.39

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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.