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Finding the Fourth Proportional to 283,797.78, 391,697.69 and 163,021.92

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Solution

The fourth proportional to 283,797.78, 391,697.69 and 163,021.92 is: 225,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,797.78 : 391,697.69 = 163,021.92 : x
  2. Step 2: Convert to fraction form
    283,797.78/391,697.69 = 163,021.92/x
  3. Step 3: Cross multiply
    283,797.78x = 391,697.69 × 163,021.92
  4. Step 4: Simplify right side
    283,797.78x = 63,855,308,668.26
  5. Step 5: Solve for x
    x = 63,855,308,668.26/283,797.78
  6. Step 6: Final answer
    x = 225,002.85

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1.5x scale

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.