Home / 309,912.36-427,682.23-173,943.58

Finding the Fourth Proportional to 309,912.36, 427,682.23 and 173,943.58

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Solution

The fourth proportional to 309,912.36, 427,682.23 and 173,943.58 is: 240,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,912.36 : 427,682.23 = 173,943.58 : x
  2. Step 2: Convert to fraction form
    309,912.36/427,682.23 = 173,943.58/x
  3. Step 3: Cross multiply
    309,912.36x = 427,682.23 × 173,943.58
  4. Step 4: Simplify right side
    309,912.36x = 74,392,577,318.87
  5. Step 5: Solve for x
    x = 74,392,577,318.87/309,912.36
  6. Step 6: Final answer
    x = 240,043.92

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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.