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Finding the Fourth Proportional to 355,238.16, 490,238.10 and 194,091.90

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Solution

The fourth proportional to 355,238.16, 490,238.10 and 194,091.90 is: 267,851.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,238.16 : 490,238.10 = 194,091.90 : x
  2. Step 2: Convert to fraction form
    355,238.16/490,238.10 = 194,091.90/x
  3. Step 3: Cross multiply
    355,238.16x = 490,238.10 × 194,091.90
  4. Step 4: Simplify right side
    355,238.16x = 95,151,244,281.39
  5. Step 5: Solve for x
    x = 95,151,244,281.39/355,238.16
  6. Step 6: Final answer
    x = 267,851.98

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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.