Home / 320,840.64-442,754.71-177,597.60

Finding the Fourth Proportional to 320,840.64, 442,754.71 and 177,597.60

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Solution

The fourth proportional to 320,840.64, 442,754.71 and 177,597.60 is: 245,081.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,840.64 : 442,754.71 = 177,597.60 : x
  2. Step 2: Convert to fraction form
    320,840.64/442,754.71 = 177,597.60/x
  3. Step 3: Cross multiply
    320,840.64x = 442,754.71 × 177,597.60
  4. Step 4: Simplify right side
    320,840.64x = 78,632,173,884.70
  5. Step 5: Solve for x
    x = 78,632,173,884.70/320,840.64
  6. Step 6: Final answer
    x = 245,081.71

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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.