Home / 389,337.12-537,183.48-228,105.60

Finding the Fourth Proportional to 389,337.12, 537,183.48 and 228,105.60

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Solution

The fourth proportional to 389,337.12, 537,183.48 and 228,105.60 is: 314,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,337.12 : 537,183.48 = 228,105.60 : x
  2. Step 2: Convert to fraction form
    389,337.12/537,183.48 = 228,105.60/x
  3. Step 3: Cross multiply
    389,337.12x = 537,183.48 × 228,105.60
  4. Step 4: Simplify right side
    389,337.12x = 122,534,560,015.49
  5. Step 5: Solve for x
    x = 122,534,560,015.49/389,337.12
  6. Step 6: Final answer
    x = 314,726.12

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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.