Home / 258,075.30-356,131.86-143,361.36

Finding the Fourth Proportional to 258,075.30, 356,131.86 and 143,361.36

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Solution

The fourth proportional to 258,075.30, 356,131.86 and 143,361.36 is: 197,831.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,075.30 : 356,131.86 = 143,361.36 : x
  2. Step 2: Convert to fraction form
    258,075.30/356,131.86 = 143,361.36/x
  3. Step 3: Cross multiply
    258,075.30x = 356,131.86 × 143,361.36
  4. Step 4: Simplify right side
    258,075.30x = 51,055,547,788.93
  5. Step 5: Solve for x
    x = 51,055,547,788.93/258,075.30
  6. Step 6: Final answer
    x = 197,831.98

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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.