Home / 355,122.38-490,065.98-193,977.47

Finding the Fourth Proportional to 355,122.38, 490,065.98 and 193,977.47

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Solution

The fourth proportional to 355,122.38, 490,065.98 and 193,977.47 is: 267,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,122.38 : 490,065.98 = 193,977.47 : x
  2. Step 2: Convert to fraction form
    355,122.38/490,065.98 = 193,977.47/x
  3. Step 3: Cross multiply
    355,122.38x = 490,065.98 × 193,977.47
  4. Step 4: Simplify right side
    355,122.38x = 95,061,755,513.25
  5. Step 5: Solve for x
    x = 95,061,755,513.25/355,122.38
  6. Step 6: Final answer
    x = 267,687.32

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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.