Home / 245,684.31-339,043.26-138,256.14

Finding the Fourth Proportional to 245,684.31, 339,043.26 and 138,256.14

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Solution

The fourth proportional to 245,684.31, 339,043.26 and 138,256.14 is: 190,792.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,684.31 : 339,043.26 = 138,256.14 : x
  2. Step 2: Convert to fraction form
    245,684.31/339,043.26 = 138,256.14/x
  3. Step 3: Cross multiply
    245,684.31x = 339,043.26 × 138,256.14
  4. Step 4: Simplify right side
    245,684.31x = 46,874,812,420.62
  5. Step 5: Solve for x
    x = 46,874,812,420.62/245,684.31
  6. Step 6: Final answer
    x = 190,792.86

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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.