Home / 291,629.28-437,634-220,401.12

Finding the Fourth Proportional to 291,629.28, 437,634 and 220,401.12

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Solution

The fourth proportional to 291,629.28, 437,634 and 220,401.12 is: 330,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,629.28 : 437,634 = 220,401.12 : x
  2. Step 2: Convert to fraction form
    291,629.28/437,634 = 220,401.12/x
  3. Step 3: Cross multiply
    291,629.28x = 437,634 × 220,401.12
  4. Step 4: Simplify right side
    291,629.28x = 96,455,023,750.08
  5. Step 5: Solve for x
    x = 96,455,023,750.08/291,629.28
  6. Step 6: Final answer
    x = 330,745.33

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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.