Home / 291,825.21-437,742.20-81,464.25

Finding the Fourth Proportional to 291,825.21, 437,742.20 and 81,464.25

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Solution

The fourth proportional to 291,825.21, 437,742.20 and 81,464.25 is: 122,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,825.21 : 437,742.20 = 81,464.25 : x
  2. Step 2: Convert to fraction form
    291,825.21/437,742.20 = 81,464.25/x
  3. Step 3: Cross multiply
    291,825.21x = 437,742.20 × 81,464.25
  4. Step 4: Simplify right side
    291,825.21x = 35,660,340,016.35
  5. Step 5: Solve for x
    x = 35,660,340,016.35/291,825.21
  6. Step 6: Final answer
    x = 122,197.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.