Home / 351,811.40-485,498.49-190,670.36

Finding the Fourth Proportional to 351,811.40, 485,498.49 and 190,670.36

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Solution

The fourth proportional to 351,811.40, 485,498.49 and 190,670.36 is: 263,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,811.40 : 485,498.49 = 190,670.36 : x
  2. Step 2: Convert to fraction form
    351,811.40/485,498.49 = 190,670.36/x
  3. Step 3: Cross multiply
    351,811.40x = 485,498.49 × 190,670.36
  4. Step 4: Simplify right side
    351,811.40x = 92,570,171,867.76
  5. Step 5: Solve for x
    x = 92,570,171,867.76/351,811.40
  6. Step 6: Final answer
    x = 263,124.42

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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.