Home / 211,682.40-317,005.20-100,744.80

Finding the Fourth Proportional to 211,682.40, 317,005.20 and 100,744.80

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Solution

The fourth proportional to 211,682.40, 317,005.20 and 100,744.80 is: 150,870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,682.40 : 317,005.20 = 100,744.80 : x
  2. Step 2: Convert to fraction form
    211,682.40/317,005.20 = 100,744.80/x
  3. Step 3: Cross multiply
    211,682.40x = 317,005.20 × 100,744.80
  4. Step 4: Simplify right side
    211,682.40x = 31,936,625,472.96
  5. Step 5: Solve for x
    x = 31,936,625,472.96/211,682.40
  6. Step 6: Final answer
    x = 150,870.48

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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.