Home / 278,111.06-383,796.22-163,394.48

Finding the Fourth Proportional to 278,111.06, 383,796.22 and 163,394.48

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Solution

The fourth proportional to 278,111.06, 383,796.22 and 163,394.48 is: 225,486.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,111.06 : 383,796.22 = 163,394.48 : x
  2. Step 2: Convert to fraction form
    278,111.06/383,796.22 = 163,394.48/x
  3. Step 3: Cross multiply
    278,111.06x = 383,796.22 × 163,394.48
  4. Step 4: Simplify right side
    278,111.06x = 62,710,183,792.87
  5. Step 5: Solve for x
    x = 62,710,183,792.87/278,111.06
  6. Step 6: Final answer
    x = 225,486.12

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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.