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Finding the Fourth Proportional to 328,167.90, 491,267.70 and 194,979.60

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Solution

The fourth proportional to 328,167.90, 491,267.70 and 194,979.60 is: 291,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,167.90 : 491,267.70 = 194,979.60 : x
  2. Step 2: Convert to fraction form
    328,167.90/491,267.70 = 194,979.60/x
  3. Step 3: Cross multiply
    328,167.90x = 491,267.70 × 194,979.60
  4. Step 4: Simplify right side
    328,167.90x = 95,787,179,638.92
  5. Step 5: Solve for x
    x = 95,787,179,638.92/328,167.90
  6. Step 6: Final answer
    x = 291,884.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.