Home / 245,660.16-339,007.09-138,230.13

Finding the Fourth Proportional to 245,660.16, 339,007.09 and 138,230.13

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Solution

The fourth proportional to 245,660.16, 339,007.09 and 138,230.13 is: 190,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,660.16 : 339,007.09 = 138,230.13 : x
  2. Step 2: Convert to fraction form
    245,660.16/339,007.09 = 138,230.13/x
  3. Step 3: Cross multiply
    245,660.16x = 339,007.09 × 138,230.13
  4. Step 4: Simplify right side
    245,660.16x = 46,860,994,121.62
  5. Step 5: Solve for x
    x = 46,860,994,121.62/245,660.16
  6. Step 6: Final answer
    x = 190,755.37

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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.