Home / 283,144.27-390,738.86-155,819.87

Finding the Fourth Proportional to 283,144.27, 390,738.86 and 155,819.87

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Solution

The fourth proportional to 283,144.27, 390,738.86 and 155,819.87 is: 215,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,144.27 : 390,738.86 = 155,819.87 : x
  2. Step 2: Convert to fraction form
    283,144.27/390,738.86 = 155,819.87/x
  3. Step 3: Cross multiply
    283,144.27x = 390,738.86 × 155,819.87
  4. Step 4: Simplify right side
    283,144.27x = 60,884,876,415.45
  5. Step 5: Solve for x
    x = 60,884,876,415.45/283,144.27
  6. Step 6: Final answer
    x = 215,031.29

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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.