Home / 258,078.35-356,154.60-143,351.49

Finding the Fourth Proportional to 258,078.35, 356,154.60 and 143,351.49

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Solution

The fourth proportional to 258,078.35, 356,154.60 and 143,351.49 is: 197,828.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,078.35 : 356,154.60 = 143,351.49 : x
  2. Step 2: Convert to fraction form
    258,078.35/356,154.60 = 143,351.49/x
  3. Step 3: Cross multiply
    258,078.35x = 356,154.60 × 143,351.49
  4. Step 4: Simplify right side
    258,078.35x = 51,055,292,580.35
  5. Step 5: Solve for x
    x = 51,055,292,580.35/258,078.35
  6. Step 6: Final answer
    x = 197,828.66

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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.