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Finding the Fourth Proportional to 389,258.97, 537,193.31 and 245,966.73

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Solution

The fourth proportional to 389,258.97, 537,193.31 and 245,966.73 is: 339,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,258.97 : 537,193.31 = 245,966.73 : x
  2. Step 2: Convert to fraction form
    389,258.97/537,193.31 = 245,966.73/x
  3. Step 3: Cross multiply
    389,258.97x = 537,193.31 × 245,966.73
  4. Step 4: Simplify right side
    389,258.97x = 132,131,681,838.58
  5. Step 5: Solve for x
    x = 132,131,681,838.58/389,258.97
  6. Step 6: Final answer
    x = 339,444.15

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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.