Home / 198,440.56-274,085.40-144,639.28

Finding the Fourth Proportional to 198,440.56, 274,085.40 and 144,639.28

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Solution

The fourth proportional to 198,440.56, 274,085.40 and 144,639.28 is: 199,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,440.56 : 274,085.40 = 144,639.28 : x
  2. Step 2: Convert to fraction form
    198,440.56/274,085.40 = 144,639.28/x
  3. Step 3: Cross multiply
    198,440.56x = 274,085.40 × 144,639.28
  4. Step 4: Simplify right side
    198,440.56x = 39,643,514,914.51
  5. Step 5: Solve for x
    x = 39,643,514,914.51/198,440.56
  6. Step 6: Final answer
    x = 199,775.26

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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.