Home / 275,122.37-379,678.39-154,265.11

Finding the Fourth Proportional to 275,122.37, 379,678.39 and 154,265.11

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Solution

The fourth proportional to 275,122.37, 379,678.39 and 154,265.11 is: 212,891.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,122.37 : 379,678.39 = 154,265.11 : x
  2. Step 2: Convert to fraction form
    275,122.37/379,678.39 = 154,265.11/x
  3. Step 3: Cross multiply
    275,122.37x = 379,678.39 × 154,265.11
  4. Step 4: Simplify right side
    275,122.37x = 58,571,127,263.11
  5. Step 5: Solve for x
    x = 58,571,127,263.11/275,122.37
  6. Step 6: Final answer
    x = 212,891.18

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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.