Home / 258,255.08-356,289.54-149,339.30

Finding the Fourth Proportional to 258,255.08, 356,289.54 and 149,339.30

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Solution

The fourth proportional to 258,255.08, 356,289.54 and 149,339.30 is: 206,028.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,255.08 : 356,289.54 = 149,339.30 : x
  2. Step 2: Convert to fraction form
    258,255.08/356,289.54 = 149,339.30/x
  3. Step 3: Cross multiply
    258,255.08x = 356,289.54 × 149,339.30
  4. Step 4: Simplify right side
    258,255.08x = 53,208,028,159.45
  5. Step 5: Solve for x
    x = 53,208,028,159.45/258,255.08
  6. Step 6: Final answer
    x = 206,028.97

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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.