Home / 253,986.36-380,645.28-141,719.40

Finding the Fourth Proportional to 253,986.36, 380,645.28 and 141,719.40

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Solution

The fourth proportional to 253,986.36, 380,645.28 and 141,719.40 is: 212,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,986.36 : 380,645.28 = 141,719.40 : x
  2. Step 2: Convert to fraction form
    253,986.36/380,645.28 = 141,719.40/x
  3. Step 3: Cross multiply
    253,986.36x = 380,645.28 × 141,719.40
  4. Step 4: Simplify right side
    253,986.36x = 53,944,820,694.43
  5. Step 5: Solve for x
    x = 53,944,820,694.43/253,986.36
  6. Step 6: Final answer
    x = 212,392.59

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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.