Home / 258,606.03-356,878.08-143,889.50

Finding the Fourth Proportional to 258,606.03, 356,878.08 and 143,889.50

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Solution

The fourth proportional to 258,606.03, 356,878.08 and 143,889.50 is: 198,568.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,606.03 : 356,878.08 = 143,889.50 : x
  2. Step 2: Convert to fraction form
    258,606.03/356,878.08 = 143,889.50/x
  3. Step 3: Cross multiply
    258,606.03x = 356,878.08 × 143,889.50
  4. Step 4: Simplify right side
    258,606.03x = 51,351,008,477.81
  5. Step 5: Solve for x
    x = 51,351,008,477.81/258,606.03
  6. Step 6: Final answer
    x = 198,568.49

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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.