Home / 289,039.09-398,840.67-166,549.33

Finding the Fourth Proportional to 289,039.09, 398,840.67 and 166,549.33

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Solution

The fourth proportional to 289,039.09, 398,840.67 and 166,549.33 is: 229,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,039.09 : 398,840.67 = 166,549.33 : x
  2. Step 2: Convert to fraction form
    289,039.09/398,840.67 = 166,549.33/x
  3. Step 3: Cross multiply
    289,039.09x = 398,840.67 × 166,549.33
  4. Step 4: Simplify right side
    289,039.09x = 66,426,646,365.25
  5. Step 5: Solve for x
    x = 66,426,646,365.25/289,039.09
  6. Step 6: Final answer
    x = 229,818.90

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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.