Home / 289,729.20-434,010.60-201,082.80

Finding the Fourth Proportional to 289,729.20, 434,010.60 and 201,082.80

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Solution

The fourth proportional to 289,729.20, 434,010.60 and 201,082.80 is: 301,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,729.20 : 434,010.60 = 201,082.80 : x
  2. Step 2: Convert to fraction form
    289,729.20/434,010.60 = 201,082.80/x
  3. Step 3: Cross multiply
    289,729.20x = 434,010.60 × 201,082.80
  4. Step 4: Simplify right side
    289,729.20x = 87,272,066,677.68
  5. Step 5: Solve for x
    x = 87,272,066,677.68/289,729.20
  6. Step 6: Final answer
    x = 301,219.44

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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.