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Finding the Fourth Proportional to 287,892.92, 397,086.54 and 249,583.97

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Solution

The fourth proportional to 287,892.92, 397,086.54 and 249,583.97 is: 344,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,892.92 : 397,086.54 = 249,583.97 : x
  2. Step 2: Convert to fraction form
    287,892.92/397,086.54 = 249,583.97/x
  3. Step 3: Cross multiply
    287,892.92x = 397,086.54 × 249,583.97
  4. Step 4: Simplify right side
    287,892.92x = 99,106,433,101.33
  5. Step 5: Solve for x
    x = 99,106,433,101.33/287,892.92
  6. Step 6: Final answer
    x = 344,247.56

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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.