Home / 389,239.16-537,137.85-228,201.46

Finding the Fourth Proportional to 389,239.16, 537,137.85 and 228,201.46

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Solution

The fourth proportional to 389,239.16, 537,137.85 and 228,201.46 is: 314,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,239.16 : 537,137.85 = 228,201.46 : x
  2. Step 2: Convert to fraction form
    389,239.16/537,137.85 = 228,201.46/x
  3. Step 3: Cross multiply
    389,239.16x = 537,137.85 × 228,201.46
  4. Step 4: Simplify right side
    389,239.16x = 122,575,640,248.42
  5. Step 5: Solve for x
    x = 122,575,640,248.42/389,239.16
  6. Step 6: Final answer
    x = 314,910.87

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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.