Home / 258,195.49-356,302.66-143,471.17

Finding the Fourth Proportional to 258,195.49, 356,302.66 and 143,471.17

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Solution

The fourth proportional to 258,195.49, 356,302.66 and 143,471.17 is: 197,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,195.49 : 356,302.66 = 143,471.17 : x
  2. Step 2: Convert to fraction form
    258,195.49/356,302.66 = 143,471.17/x
  3. Step 3: Cross multiply
    258,195.49x = 356,302.66 × 143,471.17
  4. Step 4: Simplify right side
    258,195.49x = 51,119,159,504.31
  5. Step 5: Solve for x
    x = 51,119,159,504.31/258,195.49
  6. Step 6: Final answer
    x = 197,986.26

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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.