Home / 258,550.85-356,795.86-143,828.12

Finding the Fourth Proportional to 258,550.85, 356,795.86 and 143,828.12

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Solution

The fourth proportional to 258,550.85, 356,795.86 and 143,828.12 is: 198,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,550.85 : 356,795.86 = 143,828.12 : x
  2. Step 2: Convert to fraction form
    258,550.85/356,795.86 = 143,828.12/x
  3. Step 3: Cross multiply
    258,550.85x = 356,795.86 × 143,828.12
  4. Step 4: Simplify right side
    258,550.85x = 51,317,277,767.58
  5. Step 5: Solve for x
    x = 51,317,277,767.58/258,550.85
  6. Step 6: Final answer
    x = 198,480.41

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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.