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Finding the Fourth Proportional to 328,045.80, 491,193.90 and 328,045.80

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Solution

The fourth proportional to 328,045.80, 491,193.90 and 328,045.80 is: 491,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,045.80 : 491,193.90 = 328,045.80 : x
  2. Step 2: Convert to fraction form
    328,045.80/491,193.90 = 328,045.80/x
  3. Step 3: Cross multiply
    328,045.80x = 491,193.90 × 328,045.80
  4. Step 4: Simplify right side
    328,045.80x = 161,134,095,880.62
  5. Step 5: Solve for x
    x = 161,134,095,880.62/328,045.80
  6. Step 6: Final answer
    x = 491,193.90

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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.