Home / 306,942.75-423,650.12-199,633.95

Finding the Fourth Proportional to 306,942.75, 423,650.12 and 199,633.95

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Solution

The fourth proportional to 306,942.75, 423,650.12 and 199,633.95 is: 275,539.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,942.75 : 423,650.12 = 199,633.95 : x
  2. Step 2: Convert to fraction form
    306,942.75/423,650.12 = 199,633.95/x
  3. Step 3: Cross multiply
    306,942.75x = 423,650.12 × 199,633.95
  4. Step 4: Simplify right side
    306,942.75x = 84,574,945,875.40
  5. Step 5: Solve for x
    x = 84,574,945,875.40/306,942.75
  6. Step 6: Final answer
    x = 275,539.81

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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.