Home / 381,054.14-525,831.09-211,288.26

Finding the Fourth Proportional to 381,054.14, 525,831.09 and 211,288.26

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Solution

The fourth proportional to 381,054.14, 525,831.09 and 211,288.26 is: 291,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,054.14 : 525,831.09 = 211,288.26 : x
  2. Step 2: Convert to fraction form
    381,054.14/525,831.09 = 211,288.26/x
  3. Step 3: Cross multiply
    381,054.14x = 525,831.09 × 211,288.26
  4. Step 4: Simplify right side
    381,054.14x = 111,101,938,428.04
  5. Step 5: Solve for x
    x = 111,101,938,428.04/381,054.14
  6. Step 6: Final answer
    x = 291,564.71

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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.