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Finding the Fourth Proportional to 219,739.68, 329,609.52 and 79,465.50

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Solution

The fourth proportional to 219,739.68, 329,609.52 and 79,465.50 is: 119,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,739.68 : 329,609.52 = 79,465.50 : x
  2. Step 2: Convert to fraction form
    219,739.68/329,609.52 = 79,465.50/x
  3. Step 3: Cross multiply
    219,739.68x = 329,609.52 × 79,465.50
  4. Step 4: Simplify right side
    219,739.68x = 26,192,585,311.56
  5. Step 5: Solve for x
    x = 26,192,585,311.56/219,739.68
  6. Step 6: Final answer
    x = 119,198.25

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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.