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Finding the Fourth Proportional to 351,479.80, 484,923.09 and 230,609.80

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Solution

The fourth proportional to 351,479.80, 484,923.09 and 230,609.80 is: 318,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,479.80 : 484,923.09 = 230,609.80 : x
  2. Step 2: Convert to fraction form
    351,479.80/484,923.09 = 230,609.80/x
  3. Step 3: Cross multiply
    351,479.80x = 484,923.09 × 230,609.80
  4. Step 4: Simplify right side
    351,479.80x = 111,828,016,800.28
  5. Step 5: Solve for x
    x = 111,828,016,800.28/351,479.80
  6. Step 6: Final answer
    x = 318,163.42

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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.