Home / 275,821.32-380,513.46-173,784.84

Finding the Fourth Proportional to 275,821.32, 380,513.46 and 173,784.84

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Solution

The fourth proportional to 275,821.32, 380,513.46 and 173,784.84 is: 239,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,821.32 : 380,513.46 = 173,784.84 : x
  2. Step 2: Convert to fraction form
    275,821.32/380,513.46 = 173,784.84/x
  3. Step 3: Cross multiply
    275,821.32x = 380,513.46 × 173,784.84
  4. Step 4: Simplify right side
    275,821.32x = 66,127,470,763.95
  5. Step 5: Solve for x
    x = 66,127,470,763.95/275,821.32
  6. Step 6: Final answer
    x = 239,747.50

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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.