Home / 253,629.32-380,583.99-141,372.72

Finding the Fourth Proportional to 253,629.32, 380,583.99 and 141,372.72

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Solution

The fourth proportional to 253,629.32, 380,583.99 and 141,372.72 is: 212,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,629.32 : 380,583.99 = 141,372.72 : x
  2. Step 2: Convert to fraction form
    253,629.32/380,583.99 = 141,372.72/x
  3. Step 3: Cross multiply
    253,629.32x = 380,583.99 × 141,372.72
  4. Step 4: Simplify right side
    253,629.32x = 53,804,193,854.75
  5. Step 5: Solve for x
    x = 53,804,193,854.75/253,629.32
  6. Step 6: Final answer
    x = 212,137.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.