Home / 275,579.08-380,269.69-154,733.63

Finding the Fourth Proportional to 275,579.08, 380,269.69 and 154,733.63

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Solution

The fourth proportional to 275,579.08, 380,269.69 and 154,733.63 is: 213,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,579.08 : 380,269.69 = 154,733.63 : x
  2. Step 2: Convert to fraction form
    275,579.08/380,269.69 = 154,733.63/x
  3. Step 3: Cross multiply
    275,579.08x = 380,269.69 × 154,733.63
  4. Step 4: Simplify right side
    275,579.08x = 58,840,507,224.49
  5. Step 5: Solve for x
    x = 58,840,507,224.49/275,579.08
  6. Step 6: Final answer
    x = 213,515.87

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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.