Home / 209,594.70-315,804.22-172,975

Finding the Fourth Proportional to 209,594.70, 315,804.22 and 172,975

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Solution

The fourth proportional to 209,594.70, 315,804.22 and 172,975 is: 260,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,594.70 : 315,804.22 = 172,975 : x
  2. Step 2: Convert to fraction form
    209,594.70/315,804.22 = 172,975/x
  3. Step 3: Cross multiply
    209,594.70x = 315,804.22 × 172,975
  4. Step 4: Simplify right side
    209,594.70x = 54,626,234,954.50
  5. Step 5: Solve for x
    x = 54,626,234,954.50/209,594.70
  6. Step 6: Final answer
    x = 260,627.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.