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Finding the Fourth Proportional to 248,716.40, 372,491.40 and 169,401.20

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Solution

The fourth proportional to 248,716.40, 372,491.40 and 169,401.20 is: 253,704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,716.40 : 372,491.40 = 169,401.20 : x
  2. Step 2: Convert to fraction form
    248,716.40/372,491.40 = 169,401.20/x
  3. Step 3: Cross multiply
    248,716.40x = 372,491.40 × 169,401.20
  4. Step 4: Simplify right side
    248,716.40x = 63,100,490,149.68
  5. Step 5: Solve for x
    x = 63,100,490,149.68/248,716.40
  6. Step 6: Final answer
    x = 253,704.58

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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.