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Finding the Fourth Proportional to 355,297.50, 490,289.89 and 194,153.87

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Solution

The fourth proportional to 355,297.50, 490,289.89 and 194,153.87 is: 267,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,297.50 : 490,289.89 = 194,153.87 : x
  2. Step 2: Convert to fraction form
    355,297.50/490,289.89 = 194,153.87/x
  3. Step 3: Cross multiply
    355,297.50x = 490,289.89 × 194,153.87
  4. Step 4: Simplify right side
    355,297.50x = 95,191,679,565.37
  5. Step 5: Solve for x
    x = 95,191,679,565.37/355,297.50
  6. Step 6: Final answer
    x = 267,921.05

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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.