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Finding the Fourth Proportional to 355,235.72, 490,219.56 and 194,087.30

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Solution

The fourth proportional to 355,235.72, 490,219.56 and 194,087.30 is: 267,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,235.72 : 490,219.56 = 194,087.30 : x
  2. Step 2: Convert to fraction form
    355,235.72/490,219.56 = 194,087.30/x
  3. Step 3: Cross multiply
    355,235.72x = 490,219.56 × 194,087.30
  4. Step 4: Simplify right side
    355,235.72x = 95,145,390,807.59
  5. Step 5: Solve for x
    x = 95,145,390,807.59/355,235.72
  6. Step 6: Final answer
    x = 267,837.34

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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.