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Finding the Fourth Proportional to 389,850.52, 537,998.21 and 228,708.31

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Solution

The fourth proportional to 389,850.52, 537,998.21 and 228,708.31 is: 315,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,850.52 : 537,998.21 = 228,708.31 : x
  2. Step 2: Convert to fraction form
    389,850.52/537,998.21 = 228,708.31/x
  3. Step 3: Cross multiply
    389,850.52x = 537,998.21 × 228,708.31
  4. Step 4: Simplify right side
    389,850.52x = 123,044,660,248.58
  5. Step 5: Solve for x
    x = 123,044,660,248.58/389,850.52
  6. Step 6: Final answer
    x = 315,620.10

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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.