Home / 372,453.80-513,997.90-211,315.64

Finding the Fourth Proportional to 372,453.80, 513,997.90 and 211,315.64

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Solution

The fourth proportional to 372,453.80, 513,997.90 and 211,315.64 is: 291,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,453.80 : 513,997.90 = 211,315.64 : x
  2. Step 2: Convert to fraction form
    372,453.80/513,997.90 = 211,315.64/x
  3. Step 3: Cross multiply
    372,453.80x = 513,997.90 × 211,315.64
  4. Step 4: Simplify right side
    372,453.80x = 108,615,792,098.88
  5. Step 5: Solve for x
    x = 108,615,792,098.88/372,453.80
  6. Step 6: Final answer
    x = 291,622.19

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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.