Home / 258,725.20-356,848.32-228,457.12

Finding the Fourth Proportional to 258,725.20, 356,848.32 and 228,457.12

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Solution

The fourth proportional to 258,725.20, 356,848.32 and 228,457.12 is: 315,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,725.20 : 356,848.32 = 228,457.12 : x
  2. Step 2: Convert to fraction form
    258,725.20/356,848.32 = 228,457.12/x
  3. Step 3: Cross multiply
    258,725.20x = 356,848.32 × 228,457.12
  4. Step 4: Simplify right side
    258,725.20x = 81,524,539,464.04
  5. Step 5: Solve for x
    x = 81,524,539,464.04/258,725.20
  6. Step 6: Final answer
    x = 315,100.88

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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.