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Finding the Fourth Proportional to 358,984.80, 537,310.80 and 279,669.60

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Solution

The fourth proportional to 358,984.80, 537,310.80 and 279,669.60 is: 418,595.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,984.80 : 537,310.80 = 279,669.60 : x
  2. Step 2: Convert to fraction form
    358,984.80/537,310.80 = 279,669.60/x
  3. Step 3: Cross multiply
    358,984.80x = 537,310.80 × 279,669.60
  4. Step 4: Simplify right side
    358,984.80x = 150,269,496,511.68
  5. Step 5: Solve for x
    x = 150,269,496,511.68/358,984.80
  6. Step 6: Final answer
    x = 418,595.71

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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.