Home / 313,640.45-432,821.49-170,401.67

Finding the Fourth Proportional to 313,640.45, 432,821.49 and 170,401.67

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Solution

The fourth proportional to 313,640.45, 432,821.49 and 170,401.67 is: 235,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,640.45 : 432,821.49 = 170,401.67 : x
  2. Step 2: Convert to fraction form
    313,640.45/432,821.49 = 170,401.67/x
  3. Step 3: Cross multiply
    313,640.45x = 432,821.49 × 170,401.67
  4. Step 4: Simplify right side
    313,640.45x = 73,753,504,707.89
  5. Step 5: Solve for x
    x = 73,753,504,707.89/313,640.45
  6. Step 6: Final answer
    x = 235,153.04

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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.