Home / 221,313.16-305,403.21-124,518.97

Finding the Fourth Proportional to 221,313.16, 305,403.21 and 124,518.97

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Solution

The fourth proportional to 221,313.16, 305,403.21 and 124,518.97 is: 171,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,313.16 : 305,403.21 = 124,518.97 : x
  2. Step 2: Convert to fraction form
    221,313.16/305,403.21 = 124,518.97/x
  3. Step 3: Cross multiply
    221,313.16x = 305,403.21 × 124,518.97
  4. Step 4: Simplify right side
    221,313.16x = 38,028,493,525.65
  5. Step 5: Solve for x
    x = 38,028,493,525.65/221,313.16
  6. Step 6: Final answer
    x = 171,831.14

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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.