Home / 275,013.54-379,536.21-154,154.85

Finding the Fourth Proportional to 275,013.54, 379,536.21 and 154,154.85

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Solution

The fourth proportional to 275,013.54, 379,536.21 and 154,154.85 is: 212,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,013.54 : 379,536.21 = 154,154.85 : x
  2. Step 2: Convert to fraction form
    275,013.54/379,536.21 = 154,154.85/x
  3. Step 3: Cross multiply
    275,013.54x = 379,536.21 × 154,154.85
  4. Step 4: Simplify right side
    275,013.54x = 58,507,347,522.12
  5. Step 5: Solve for x
    x = 58,507,347,522.12/275,013.54
  6. Step 6: Final answer
    x = 212,743.52

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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.