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Finding the Fourth Proportional to 249,969.25, 374,992.98 and 81,450.46

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Solution

The fourth proportional to 249,969.25, 374,992.98 and 81,450.46 is: 122,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,969.25 : 374,992.98 = 81,450.46 : x
  2. Step 2: Convert to fraction form
    249,969.25/374,992.98 = 81,450.46/x
  3. Step 3: Cross multiply
    249,969.25x = 374,992.98 × 81,450.46
  4. Step 4: Simplify right side
    249,969.25x = 30,543,350,717.77
  5. Step 5: Solve for x
    x = 30,543,350,717.77/249,969.25
  6. Step 6: Final answer
    x = 122,188.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.