Home / 213,944.45-320,685.91-139,118.27

Finding the Fourth Proportional to 213,944.45, 320,685.91 and 139,118.27

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Solution

The fourth proportional to 213,944.45, 320,685.91 and 139,118.27 is: 208,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,944.45 : 320,685.91 = 139,118.27 : x
  2. Step 2: Convert to fraction form
    213,944.45/320,685.91 = 139,118.27/x
  3. Step 3: Cross multiply
    213,944.45x = 320,685.91 × 139,118.27
  4. Step 4: Simplify right side
    213,944.45x = 44,613,267,061.35
  5. Step 5: Solve for x
    x = 44,613,267,061.35/213,944.45
  6. Step 6: Final answer
    x = 208,527.34

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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.