Home / 258,009.06-356,055.99-143,295.12

Finding the Fourth Proportional to 258,009.06, 356,055.99 and 143,295.12

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Solution

The fourth proportional to 258,009.06, 356,055.99 and 143,295.12 is: 197,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,009.06 : 356,055.99 = 143,295.12 : x
  2. Step 2: Convert to fraction form
    258,009.06/356,055.99 = 143,295.12/x
  3. Step 3: Cross multiply
    258,009.06x = 356,055.99 × 143,295.12
  4. Step 4: Simplify right side
    258,009.06x = 51,021,085,813.77
  5. Step 5: Solve for x
    x = 51,021,085,813.77/258,009.06
  6. Step 6: Final answer
    x = 197,749.20

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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.