Home / 366,491.10-505,734.39-215,558.94

Finding the Fourth Proportional to 366,491.10, 505,734.39 and 215,558.94

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Solution

The fourth proportional to 366,491.10, 505,734.39 and 215,558.94 is: 297,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,491.10 : 505,734.39 = 215,558.94 : x
  2. Step 2: Convert to fraction form
    366,491.10/505,734.39 = 215,558.94/x
  3. Step 3: Cross multiply
    366,491.10x = 505,734.39 × 215,558.94
  4. Step 4: Simplify right side
    366,491.10x = 109,015,569,029.95
  5. Step 5: Solve for x
    x = 109,015,569,029.95/366,491.10
  6. Step 6: Final answer
    x = 297,457.62

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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.