Home / 307,845.09-424,709.33-186,940.71

Finding the Fourth Proportional to 307,845.09, 424,709.33 and 186,940.71

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Solution

The fourth proportional to 307,845.09, 424,709.33 and 186,940.71 is: 257,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,845.09 : 424,709.33 = 186,940.71 : x
  2. Step 2: Convert to fraction form
    307,845.09/424,709.33 = 186,940.71/x
  3. Step 3: Cross multiply
    307,845.09x = 424,709.33 × 186,940.71
  4. Step 4: Simplify right side
    307,845.09x = 79,395,462,759.12
  5. Step 5: Solve for x
    x = 79,395,462,759.12/307,845.09
  6. Step 6: Final answer
    x = 257,907.19

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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.