Home / 258,180.99-356,288.91-143,459.16

Finding the Fourth Proportional to 258,180.99, 356,288.91 and 143,459.16

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Solution

The fourth proportional to 258,180.99, 356,288.91 and 143,459.16 is: 197,973.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,180.99 : 356,288.91 = 143,459.16 : x
  2. Step 2: Convert to fraction form
    258,180.99/356,288.91 = 143,459.16/x
  3. Step 3: Cross multiply
    258,180.99x = 356,288.91 × 143,459.16
  4. Step 4: Simplify right side
    258,180.99x = 51,112,907,745.92
  5. Step 5: Solve for x
    x = 51,112,907,745.92/258,180.99
  6. Step 6: Final answer
    x = 197,973.17

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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.