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Finding the Fourth Proportional to 355,294.65, 490,300.68 and 194,145.99

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Solution

The fourth proportional to 355,294.65, 490,300.68 and 194,145.99 is: 267,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,294.65 : 490,300.68 = 194,145.99 : x
  2. Step 2: Convert to fraction form
    355,294.65/490,300.68 = 194,145.99/x
  3. Step 3: Cross multiply
    355,294.65x = 490,300.68 × 194,145.99
  4. Step 4: Simplify right side
    355,294.65x = 95,189,910,916.27
  5. Step 5: Solve for x
    x = 95,189,910,916.27/355,294.65
  6. Step 6: Final answer
    x = 267,918.22

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1.5x scale

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.