Home / 258,529.79-356,792.66-143,830.05

Finding the Fourth Proportional to 258,529.79, 356,792.66 and 143,830.05

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Solution

The fourth proportional to 258,529.79, 356,792.66 and 143,830.05 is: 198,497.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,529.79 : 356,792.66 = 143,830.05 : x
  2. Step 2: Convert to fraction form
    258,529.79/356,792.66 = 143,830.05/x
  3. Step 3: Cross multiply
    258,529.79x = 356,792.66 × 143,830.05
  4. Step 4: Simplify right side
    258,529.79x = 51,317,505,418.72
  5. Step 5: Solve for x
    x = 51,317,505,418.72/258,529.79
  6. Step 6: Final answer
    x = 198,497.45

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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.