Home / 258,733.20-356,859.36-228,465.12

Finding the Fourth Proportional to 258,733.20, 356,859.36 and 228,465.12

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Solution

The fourth proportional to 258,733.20, 356,859.36 and 228,465.12 is: 315,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,733.20 : 356,859.36 = 228,465.12 : x
  2. Step 2: Convert to fraction form
    258,733.20/356,859.36 = 228,465.12/x
  3. Step 3: Cross multiply
    258,733.20x = 356,859.36 × 228,465.12
  4. Step 4: Simplify right side
    258,733.20x = 81,529,916,505.52
  5. Step 5: Solve for x
    x = 81,529,916,505.52/258,733.20
  6. Step 6: Final answer
    x = 315,111.92

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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.