Home / 258,534.75-356,782.41-143,822.55

Finding the Fourth Proportional to 258,534.75, 356,782.41 and 143,822.55

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Solution

The fourth proportional to 258,534.75, 356,782.41 and 143,822.55 is: 198,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,534.75 : 356,782.41 = 143,822.55 : x
  2. Step 2: Convert to fraction form
    258,534.75/356,782.41 = 143,822.55/x
  3. Step 3: Cross multiply
    258,534.75x = 356,782.41 × 143,822.55
  4. Step 4: Simplify right side
    258,534.75x = 51,313,356,001.35
  5. Step 5: Solve for x
    x = 51,313,356,001.35/258,534.75
  6. Step 6: Final answer
    x = 198,477.60

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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.