Home / 289,849.20-434,571.30-171,459.60

Finding the Fourth Proportional to 289,849.20, 434,571.30 and 171,459.60

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Solution

The fourth proportional to 289,849.20, 434,571.30 and 171,459.60 is: 257,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,849.20 : 434,571.30 = 171,459.60 : x
  2. Step 2: Convert to fraction form
    289,849.20/434,571.30 = 171,459.60/x
  3. Step 3: Cross multiply
    289,849.20x = 434,571.30 × 171,459.60
  4. Step 4: Simplify right side
    289,849.20x = 74,511,421,269.48
  5. Step 5: Solve for x
    x = 74,511,421,269.48/289,849.20
  6. Step 6: Final answer
    x = 257,069.61

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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.