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Finding the Fourth Proportional to 443,036.40, 664,651.80 and 218,504.40

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Solution

The fourth proportional to 443,036.40, 664,651.80 and 218,504.40 is: 327,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,036.40 : 664,651.80 = 218,504.40 : x
  2. Step 2: Convert to fraction form
    443,036.40/664,651.80 = 218,504.40/x
  3. Step 3: Cross multiply
    443,036.40x = 664,651.80 × 218,504.40
  4. Step 4: Simplify right side
    443,036.40x = 145,229,342,767.92
  5. Step 5: Solve for x
    x = 145,229,342,767.92/443,036.40
  6. Step 6: Final answer
    x = 327,804.54

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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.