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Finding the Fourth Proportional to 289,636.04, 434,453.17 and 73,494.35

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Solution

The fourth proportional to 289,636.04, 434,453.17 and 73,494.35 is: 110,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,636.04 : 434,453.17 = 73,494.35 : x
  2. Step 2: Convert to fraction form
    289,636.04/434,453.17 = 73,494.35/x
  3. Step 3: Cross multiply
    289,636.04x = 434,453.17 × 73,494.35
  4. Step 4: Simplify right side
    289,636.04x = 31,929,853,334.59
  5. Step 5: Solve for x
    x = 31,929,853,334.59/289,636.04
  6. Step 6: Final answer
    x = 110,241.30

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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.