Home / 371,161.85-512,069.63-210,015.18

Finding the Fourth Proportional to 371,161.85, 512,069.63 and 210,015.18

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Solution

The fourth proportional to 371,161.85, 512,069.63 and 210,015.18 is: 289,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,161.85 : 512,069.63 = 210,015.18 : x
  2. Step 2: Convert to fraction form
    371,161.85/512,069.63 = 210,015.18/x
  3. Step 3: Cross multiply
    371,161.85x = 512,069.63 × 210,015.18
  4. Step 4: Simplify right side
    371,161.85x = 107,542,394,466.91
  5. Step 5: Solve for x
    x = 107,542,394,466.91/371,161.85
  6. Step 6: Final answer
    x = 289,745.28

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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.