Home / 258,110.77-356,181.31-143,396.81

Finding the Fourth Proportional to 258,110.77, 356,181.31 and 143,396.81

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Solution

The fourth proportional to 258,110.77, 356,181.31 and 143,396.81 is: 197,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,110.77 : 356,181.31 = 143,396.81 : x
  2. Step 2: Convert to fraction form
    258,110.77/356,181.31 = 143,396.81/x
  3. Step 3: Cross multiply
    258,110.77x = 356,181.31 × 143,396.81
  4. Step 4: Simplify right side
    258,110.77x = 51,075,262,569.53
  5. Step 5: Solve for x
    x = 51,075,262,569.53/258,110.77
  6. Step 6: Final answer
    x = 197,881.18

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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.