Home / 313,634.45-432,813.21-170,395.67

Finding the Fourth Proportional to 313,634.45, 432,813.21 and 170,395.67

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Solution

The fourth proportional to 313,634.45, 432,813.21 and 170,395.67 is: 235,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,634.45 : 432,813.21 = 170,395.67 : x
  2. Step 2: Convert to fraction form
    313,634.45/432,813.21 = 170,395.67/x
  3. Step 3: Cross multiply
    313,634.45x = 432,813.21 × 170,395.67
  4. Step 4: Simplify right side
    313,634.45x = 73,749,496,902.80
  5. Step 5: Solve for x
    x = 73,749,496,902.80/313,634.45
  6. Step 6: Final answer
    x = 235,144.76

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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.