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Finding the Fourth Proportional to 355,316.99, 490,338.73 and 194,172.05

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Solution

The fourth proportional to 355,316.99, 490,338.73 and 194,172.05 is: 267,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,316.99 : 490,338.73 = 194,172.05 : x
  2. Step 2: Convert to fraction form
    355,316.99/490,338.73 = 194,172.05/x
  3. Step 3: Cross multiply
    355,316.99x = 490,338.73 × 194,172.05
  4. Step 4: Simplify right side
    355,316.99x = 95,210,078,082.21
  5. Step 5: Solve for x
    x = 95,210,078,082.21/355,316.99
  6. Step 6: Final answer
    x = 267,958.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.