Home / 245,716.58-339,088.56-138,287.38

Finding the Fourth Proportional to 245,716.58, 339,088.56 and 138,287.38

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Solution

The fourth proportional to 245,716.58, 339,088.56 and 138,287.38 is: 190,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,716.58 : 339,088.56 = 138,287.38 : x
  2. Step 2: Convert to fraction form
    245,716.58/339,088.56 = 138,287.38/x
  3. Step 3: Cross multiply
    245,716.58x = 339,088.56 × 138,287.38
  4. Step 4: Simplify right side
    245,716.58x = 46,891,668,550.37
  5. Step 5: Solve for x
    x = 46,891,668,550.37/245,716.58
  6. Step 6: Final answer
    x = 190,836.40

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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.