Home / 275,001.12-379,517.04-154,181.52

Finding the Fourth Proportional to 275,001.12, 379,517.04 and 154,181.52

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Solution

The fourth proportional to 275,001.12, 379,517.04 and 154,181.52 is: 212,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,001.12 : 379,517.04 = 154,181.52 : x
  2. Step 2: Convert to fraction form
    275,001.12/379,517.04 = 154,181.52/x
  3. Step 3: Cross multiply
    275,001.12x = 379,517.04 × 154,181.52
  4. Step 4: Simplify right side
    275,001.12x = 58,514,514,093.10
  5. Step 5: Solve for x
    x = 58,514,514,093.10/275,001.12
  6. Step 6: Final answer
    x = 212,779.18

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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.