Home / 258,558.57-356,810.97-145,381.32

Finding the Fourth Proportional to 258,558.57, 356,810.97 and 145,381.32

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Solution

The fourth proportional to 258,558.57, 356,810.97 and 145,381.32 is: 200,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,558.57 : 356,810.97 = 145,381.32 : x
  2. Step 2: Convert to fraction form
    258,558.57/356,810.97 = 145,381.32/x
  3. Step 3: Cross multiply
    258,558.57x = 356,810.97 × 145,381.32
  4. Step 4: Simplify right side
    258,558.57x = 51,873,649,809.08
  5. Step 5: Solve for x
    x = 51,873,649,809.08/258,558.57
  6. Step 6: Final answer
    x = 200,626.30

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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.