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Finding the Fourth Proportional to 355,156.43, 490,126.41 and 194,014.15

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Solution

The fourth proportional to 355,156.43, 490,126.41 and 194,014.15 is: 267,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,156.43 : 490,126.41 = 194,014.15 : x
  2. Step 2: Convert to fraction form
    355,156.43/490,126.41 = 194,014.15/x
  3. Step 3: Cross multiply
    355,156.43x = 490,126.41 × 194,014.15
  4. Step 4: Simplify right side
    355,156.43x = 95,091,457,603.39
  5. Step 5: Solve for x
    x = 95,091,457,603.39/355,156.43
  6. Step 6: Final answer
    x = 267,745.28

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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.