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Finding the Fourth Proportional to 208,299.58, 287,451.98 and 112,804.09

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Solution

The fourth proportional to 208,299.58, 287,451.98 and 112,804.09 is: 155,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,299.58 : 287,451.98 = 112,804.09 : x
  2. Step 2: Convert to fraction form
    208,299.58/287,451.98 = 112,804.09/x
  3. Step 3: Cross multiply
    208,299.58x = 287,451.98 × 112,804.09
  4. Step 4: Simplify right side
    208,299.58x = 32,425,757,585.34
  5. Step 5: Solve for x
    x = 32,425,757,585.34/208,299.58
  6. Step 6: Final answer
    x = 155,668.86

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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.