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Finding the Fourth Proportional to 286,043.58, 428,899.22 and 108,453.71

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Solution

The fourth proportional to 286,043.58, 428,899.22 and 108,453.71 is: 162,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,043.58 : 428,899.22 = 108,453.71 : x
  2. Step 2: Convert to fraction form
    286,043.58/428,899.22 = 108,453.71/x
  3. Step 3: Cross multiply
    286,043.58x = 428,899.22 × 108,453.71
  4. Step 4: Simplify right side
    286,043.58x = 46,515,711,625.11
  5. Step 5: Solve for x
    x = 46,515,711,625.11/286,043.58
  6. Step 6: Final answer
    x = 162,617.57

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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.