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Finding the Fourth Proportional to 275,809.82, 380,661.82 and 257,799.84

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Solution

The fourth proportional to 275,809.82, 380,661.82 and 257,799.84 is: 355,805.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,809.82 : 380,661.82 = 257,799.84 : x
  2. Step 2: Convert to fraction form
    275,809.82/380,661.82 = 257,799.84/x
  3. Step 3: Cross multiply
    275,809.82x = 380,661.82 × 257,799.84
  4. Step 4: Simplify right side
    275,809.82x = 98,134,556,290.11
  5. Step 5: Solve for x
    x = 98,134,556,290.11/275,809.82
  6. Step 6: Final answer
    x = 355,805.16

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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.