Home / 275,664.20-380,451.75-168,211.40

Finding the Fourth Proportional to 275,664.20, 380,451.75 and 168,211.40

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Solution

The fourth proportional to 275,664.20, 380,451.75 and 168,211.40 is: 232,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,664.20 : 380,451.75 = 168,211.40 : x
  2. Step 2: Convert to fraction form
    275,664.20/380,451.75 = 168,211.40/x
  3. Step 3: Cross multiply
    275,664.20x = 380,451.75 × 168,211.40
  4. Step 4: Simplify right side
    275,664.20x = 63,996,321,499.95
  5. Step 5: Solve for x
    x = 63,996,321,499.95/275,664.20
  6. Step 6: Final answer
    x = 232,153.18

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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.