Home / 258,149.49-356,233.86-143,435.40

Finding the Fourth Proportional to 258,149.49, 356,233.86 and 143,435.40

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Solution

The fourth proportional to 258,149.49, 356,233.86 and 143,435.40 is: 197,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,149.49 : 356,233.86 = 143,435.40 : x
  2. Step 2: Convert to fraction form
    258,149.49/356,233.86 = 143,435.40/x
  3. Step 3: Cross multiply
    258,149.49x = 356,233.86 × 143,435.40
  4. Step 4: Simplify right side
    258,149.49x = 51,096,546,202.64
  5. Step 5: Solve for x
    x = 51,096,546,202.64/258,149.49
  6. Step 6: Final answer
    x = 197,933.94

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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.