Home / 258,163.07-356,263.87-143,460.38

Finding the Fourth Proportional to 258,163.07, 356,263.87 and 143,460.38

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Solution

The fourth proportional to 258,163.07, 356,263.87 and 143,460.38 is: 197,974.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,163.07 : 356,263.87 = 143,460.38 : x
  2. Step 2: Convert to fraction form
    258,163.07/356,263.87 = 143,460.38/x
  3. Step 3: Cross multiply
    258,163.07x = 356,263.87 × 143,460.38
  4. Step 4: Simplify right side
    258,163.07x = 51,109,750,971.47
  5. Step 5: Solve for x
    x = 51,109,750,971.47/258,163.07
  6. Step 6: Final answer
    x = 197,974.68

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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.