Home / 210,626.08-290,771.04-143,000.80

Finding the Fourth Proportional to 210,626.08, 290,771.04 and 143,000.80

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Solution

The fourth proportional to 210,626.08, 290,771.04 and 143,000.80 is: 197,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,626.08 : 290,771.04 = 143,000.80 : x
  2. Step 2: Convert to fraction form
    210,626.08/290,771.04 = 143,000.80/x
  3. Step 3: Cross multiply
    210,626.08x = 290,771.04 × 143,000.80
  4. Step 4: Simplify right side
    210,626.08x = 41,580,491,336.83
  5. Step 5: Solve for x
    x = 41,580,491,336.83/210,626.08
  6. Step 6: Final answer
    x = 197,413.78

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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.