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Finding the Fourth Proportional to 378,037.76, 567,408 and 191,183.36

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Solution

The fourth proportional to 378,037.76, 567,408 and 191,183.36 is: 286,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,037.76 : 567,408 = 191,183.36 : x
  2. Step 2: Convert to fraction form
    378,037.76/567,408 = 191,183.36/x
  3. Step 3: Cross multiply
    378,037.76x = 567,408 × 191,183.36
  4. Step 4: Simplify right side
    378,037.76x = 108,478,967,930.88
  5. Step 5: Solve for x
    x = 108,478,967,930.88/378,037.76
  6. Step 6: Final answer
    x = 286,952.73

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1.5x scale

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.