Home / 291,226.76-401,905.86-163,910.60

Finding the Fourth Proportional to 291,226.76, 401,905.86 and 163,910.60

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Solution

The fourth proportional to 291,226.76, 401,905.86 and 163,910.60 is: 226,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,226.76 : 401,905.86 = 163,910.60 : x
  2. Step 2: Convert to fraction form
    291,226.76/401,905.86 = 163,910.60/x
  3. Step 3: Cross multiply
    291,226.76x = 401,905.86 × 163,910.60
  4. Step 4: Simplify right side
    291,226.76x = 65,876,630,656.12
  5. Step 5: Solve for x
    x = 65,876,630,656.12/291,226.76
  6. Step 6: Final answer
    x = 226,203.91

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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.