Home / 291,242.06-401,570.15-199,405.88

Finding the Fourth Proportional to 291,242.06, 401,570.15 and 199,405.88

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Solution

The fourth proportional to 291,242.06, 401,570.15 and 199,405.88 is: 274,944.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,242.06 : 401,570.15 = 199,405.88 : x
  2. Step 2: Convert to fraction form
    291,242.06/401,570.15 = 199,405.88/x
  3. Step 3: Cross multiply
    291,242.06x = 401,570.15 × 199,405.88
  4. Step 4: Simplify right side
    291,242.06x = 80,075,449,142.48
  5. Step 5: Solve for x
    x = 80,075,449,142.48/291,242.06
  6. Step 6: Final answer
    x = 274,944.66

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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.