Home / 289,906.20-434,276.10-195,427.80

Finding the Fourth Proportional to 289,906.20, 434,276.10 and 195,427.80

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Solution

The fourth proportional to 289,906.20, 434,276.10 and 195,427.80 is: 292,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,906.20 : 434,276.10 = 195,427.80 : x
  2. Step 2: Convert to fraction form
    289,906.20/434,276.10 = 195,427.80/x
  3. Step 3: Cross multiply
    289,906.20x = 434,276.10 × 195,427.80
  4. Step 4: Simplify right side
    289,906.20x = 84,869,622,815.58
  5. Step 5: Solve for x
    x = 84,869,622,815.58/289,906.20
  6. Step 6: Final answer
    x = 292,748.56

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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.