Home / 289,721.20-433,998.60-201,074.80

Finding the Fourth Proportional to 289,721.20, 433,998.60 and 201,074.80

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Solution

The fourth proportional to 289,721.20, 433,998.60 and 201,074.80 is: 301,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,721.20 : 433,998.60 = 201,074.80 : x
  2. Step 2: Convert to fraction form
    289,721.20/433,998.60 = 201,074.80/x
  3. Step 3: Cross multiply
    289,721.20x = 433,998.60 × 201,074.80
  4. Step 4: Simplify right side
    289,721.20x = 87,266,181,695.28
  5. Step 5: Solve for x
    x = 87,266,181,695.28/289,721.20
  6. Step 6: Final answer
    x = 301,207.44

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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.