Home / 258,352.50-356,559.86-145,175.26

Finding the Fourth Proportional to 258,352.50, 356,559.86 and 145,175.26

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Solution

The fourth proportional to 258,352.50, 356,559.86 and 145,175.26 is: 200,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,352.50 : 356,559.86 = 145,175.26 : x
  2. Step 2: Convert to fraction form
    258,352.50/356,559.86 = 145,175.26/x
  3. Step 3: Cross multiply
    258,352.50x = 356,559.86 × 145,175.26
  4. Step 4: Simplify right side
    258,352.50x = 51,763,670,381.06
  5. Step 5: Solve for x
    x = 51,763,670,381.06/258,352.50
  6. Step 6: Final answer
    x = 200,360.63

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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.