Home / 288,131.24-397,145.22-192,603.08

Finding the Fourth Proportional to 288,131.24, 397,145.22 and 192,603.08

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Solution

The fourth proportional to 288,131.24, 397,145.22 and 192,603.08 is: 265,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,131.24 : 397,145.22 = 192,603.08 : x
  2. Step 2: Convert to fraction form
    288,131.24/397,145.22 = 192,603.08/x
  3. Step 3: Cross multiply
    288,131.24x = 397,145.22 × 192,603.08
  4. Step 4: Simplify right side
    288,131.24x = 76,491,392,579.28
  5. Step 5: Solve for x
    x = 76,491,392,579.28/288,131.24
  6. Step 6: Final answer
    x = 265,474.14

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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.