Home / 422,916.45-634,216.58-170,111.51

Finding the Fourth Proportional to 422,916.45, 634,216.58 and 170,111.51

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Solution

The fourth proportional to 422,916.45, 634,216.58 and 170,111.51 is: 255,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,916.45 : 634,216.58 = 170,111.51 : x
  2. Step 2: Convert to fraction form
    422,916.45/634,216.58 = 170,111.51/x
  3. Step 3: Cross multiply
    422,916.45x = 634,216.58 × 170,111.51
  4. Step 4: Simplify right side
    422,916.45x = 107,887,540,090.84
  5. Step 5: Solve for x
    x = 107,887,540,090.84/422,916.45
  6. Step 6: Final answer
    x = 255,103.67

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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.