Home / 291,018.24-401,261.65-199,181.81

Finding the Fourth Proportional to 291,018.24, 401,261.65 and 199,181.81

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Solution

The fourth proportional to 291,018.24, 401,261.65 and 199,181.81 is: 274,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,018.24 : 401,261.65 = 199,181.81 : x
  2. Step 2: Convert to fraction form
    291,018.24/401,261.65 = 199,181.81/x
  3. Step 3: Cross multiply
    291,018.24x = 401,261.65 × 199,181.81
  4. Step 4: Simplify right side
    291,018.24x = 79,924,022,235.79
  5. Step 5: Solve for x
    x = 79,924,022,235.79/291,018.24
  6. Step 6: Final answer
    x = 274,635.78

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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.