Home / 289,704.20-434,556.30-171,314.60

Finding the Fourth Proportional to 289,704.20, 434,556.30 and 171,314.60

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Solution

The fourth proportional to 289,704.20, 434,556.30 and 171,314.60 is: 256,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,704.20 : 434,556.30 = 171,314.60 : x
  2. Step 2: Convert to fraction form
    289,704.20/434,556.30 = 171,314.60/x
  3. Step 3: Cross multiply
    289,704.20x = 434,556.30 × 171,314.60
  4. Step 4: Simplify right side
    289,704.20x = 74,445,838,711.98
  5. Step 5: Solve for x
    x = 74,445,838,711.98/289,704.20
  6. Step 6: Final answer
    x = 256,971.90

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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.