Home / 389,383.12-537,246.84-228,151.72

Finding the Fourth Proportional to 389,383.12, 537,246.84 and 228,151.72

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Solution

The fourth proportional to 389,383.12, 537,246.84 and 228,151.72 is: 314,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,383.12 : 537,246.84 = 228,151.72 : x
  2. Step 2: Convert to fraction form
    389,383.12/537,246.84 = 228,151.72/x
  3. Step 3: Cross multiply
    389,383.12x = 537,246.84 × 228,151.72
  4. Step 4: Simplify right side
    389,383.12x = 122,573,790,610.57
  5. Step 5: Solve for x
    x = 122,573,790,610.57/389,383.12
  6. Step 6: Final answer
    x = 314,789.69

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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.