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Finding the Fourth Proportional to 275,383.29, 380,271.29 and 172,194.32

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Solution

The fourth proportional to 275,383.29, 380,271.29 and 172,194.32 is: 237,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,383.29 : 380,271.29 = 172,194.32 : x
  2. Step 2: Convert to fraction form
    275,383.29/380,271.29 = 172,194.32/x
  3. Step 3: Cross multiply
    275,383.29x = 380,271.29 × 172,194.32
  4. Step 4: Simplify right side
    275,383.29x = 65,480,556,286.78
  5. Step 5: Solve for x
    x = 65,480,556,286.78/275,383.29
  6. Step 6: Final answer
    x = 237,779.70

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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.