Home / 389,850.27-537,997.86-228,708.06

Finding the Fourth Proportional to 389,850.27, 537,997.86 and 228,708.06

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Solution

The fourth proportional to 389,850.27, 537,997.86 and 228,708.06 is: 315,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,850.27 : 537,997.86 = 228,708.06 : x
  2. Step 2: Convert to fraction form
    389,850.27/537,997.86 = 228,708.06/x
  3. Step 3: Cross multiply
    389,850.27x = 537,997.86 × 228,708.06
  4. Step 4: Simplify right side
    389,850.27x = 123,044,446,844.75
  5. Step 5: Solve for x
    x = 123,044,446,844.75/389,850.27
  6. Step 6: Final answer
    x = 315,619.76

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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.