Home / 291,823.21-437,739.20-81,462.25

Finding the Fourth Proportional to 291,823.21, 437,739.20 and 81,462.25

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Solution

The fourth proportional to 291,823.21, 437,739.20 and 81,462.25 is: 122,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,823.21 : 437,739.20 = 81,462.25 : x
  2. Step 2: Convert to fraction form
    291,823.21/437,739.20 = 81,462.25/x
  3. Step 3: Cross multiply
    291,823.21x = 437,739.20 × 81,462.25
  4. Step 4: Simplify right side
    291,823.21x = 35,659,220,145.20
  5. Step 5: Solve for x
    x = 35,659,220,145.20/291,823.21
  6. Step 6: Final answer
    x = 122,194.60

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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.