Home / 250,643.22-345,889.35-137,466.78

Finding the Fourth Proportional to 250,643.22, 345,889.35 and 137,466.78

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Solution

The fourth proportional to 250,643.22, 345,889.35 and 137,466.78 is: 189,705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,643.22 : 345,889.35 = 137,466.78 : x
  2. Step 2: Convert to fraction form
    250,643.22/345,889.35 = 137,466.78/x
  3. Step 3: Cross multiply
    250,643.22x = 345,889.35 × 137,466.78
  4. Step 4: Simplify right side
    250,643.22x = 47,548,295,180.79
  5. Step 5: Solve for x
    x = 47,548,295,180.79/250,643.22
  6. Step 6: Final answer
    x = 189,705.09

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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.