Home / 345,621.12-476,775.12-238,004.64

Finding the Fourth Proportional to 345,621.12, 476,775.12 and 238,004.64

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Solution

The fourth proportional to 345,621.12, 476,775.12 and 238,004.64 is: 328,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,621.12 : 476,775.12 = 238,004.64 : x
  2. Step 2: Convert to fraction form
    345,621.12/476,775.12 = 238,004.64/x
  3. Step 3: Cross multiply
    345,621.12x = 476,775.12 × 238,004.64
  4. Step 4: Simplify right side
    345,621.12x = 113,474,690,796.56
  5. Step 5: Solve for x
    x = 113,474,690,796.56/345,621.12
  6. Step 6: Final answer
    x = 328,321.06

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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.