Home / 198,670.09-298,004.77-139,769.05

Finding the Fourth Proportional to 198,670.09, 298,004.77 and 139,769.05

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Solution

The fourth proportional to 198,670.09, 298,004.77 and 139,769.05 is: 209,653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,670.09 : 298,004.77 = 139,769.05 : x
  2. Step 2: Convert to fraction form
    198,670.09/298,004.77 = 139,769.05/x
  3. Step 3: Cross multiply
    198,670.09x = 298,004.77 × 139,769.05
  4. Step 4: Simplify right side
    198,670.09x = 41,651,843,598.37
  5. Step 5: Solve for x
    x = 41,651,843,598.37/198,670.09
  6. Step 6: Final answer
    x = 209,653.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.