Home / 315,851.03-435,874.60-172,611.07

Finding the Fourth Proportional to 315,851.03, 435,874.60 and 172,611.07

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Solution

The fourth proportional to 315,851.03, 435,874.60 and 172,611.07 is: 238,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,851.03 : 435,874.60 = 172,611.07 : x
  2. Step 2: Convert to fraction form
    315,851.03/435,874.60 = 172,611.07/x
  3. Step 3: Cross multiply
    315,851.03x = 435,874.60 × 172,611.07
  4. Step 4: Simplify right side
    315,851.03x = 75,236,780,217.90
  5. Step 5: Solve for x
    x = 75,236,780,217.90/315,851.03
  6. Step 6: Final answer
    x = 238,203.37

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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.