Home / 233,258.60-321,907.21-131,290.63

Finding the Fourth Proportional to 233,258.60, 321,907.21 and 131,290.63

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Solution

The fourth proportional to 233,258.60, 321,907.21 and 131,290.63 is: 181,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,258.60 : 321,907.21 = 131,290.63 : x
  2. Step 2: Convert to fraction form
    233,258.60/321,907.21 = 131,290.63/x
  3. Step 3: Cross multiply
    233,258.60x = 321,907.21 × 131,290.63
  4. Step 4: Simplify right side
    233,258.60x = 42,263,399,269.45
  5. Step 5: Solve for x
    x = 42,263,399,269.45/233,258.60
  6. Step 6: Final answer
    x = 181,186.88

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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.