Home / 313,469.43-432,720.23-211,632.83

Finding the Fourth Proportional to 313,469.43, 432,720.23 and 211,632.83

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Solution

The fourth proportional to 313,469.43, 432,720.23 and 211,632.83 is: 292,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,469.43 : 432,720.23 = 211,632.83 : x
  2. Step 2: Convert to fraction form
    313,469.43/432,720.23 = 211,632.83/x
  3. Step 3: Cross multiply
    313,469.43x = 432,720.23 × 211,632.83
  4. Step 4: Simplify right side
    313,469.43x = 91,577,804,709.55
  5. Step 5: Solve for x
    x = 91,577,804,709.55/313,469.43
  6. Step 6: Final answer
    x = 292,142.70

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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.