Home / 252,971.36-379,415.48-90,831.85

Finding the Fourth Proportional to 252,971.36, 379,415.48 and 90,831.85

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Solution

The fourth proportional to 252,971.36, 379,415.48 and 90,831.85 is: 136,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,971.36 : 379,415.48 = 90,831.85 : x
  2. Step 2: Convert to fraction form
    252,971.36/379,415.48 = 90,831.85/x
  3. Step 3: Cross multiply
    252,971.36x = 379,415.48 × 90,831.85
  4. Step 4: Simplify right side
    252,971.36x = 34,463,008,564.34
  5. Step 5: Solve for x
    x = 34,463,008,564.34/252,971.36
  6. Step 6: Final answer
    x = 136,232.85

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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.