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Finding the Fourth Proportional to 300,479.70, 414,660.84 and 171,417.96

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Solution

The fourth proportional to 300,479.70, 414,660.84 and 171,417.96 is: 236,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,479.70 : 414,660.84 = 171,417.96 : x
  2. Step 2: Convert to fraction form
    300,479.70/414,660.84 = 171,417.96/x
  3. Step 3: Cross multiply
    300,479.70x = 414,660.84 × 171,417.96
  4. Step 4: Simplify right side
    300,479.70x = 71,080,315,284.69
  5. Step 5: Solve for x
    x = 71,080,315,284.69/300,479.70
  6. Step 6: Final answer
    x = 236,556.13

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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.