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Finding the Fourth Proportional to 249,880.97, 374,821.16 and 81,401.02

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Solution

The fourth proportional to 249,880.97, 374,821.16 and 81,401.02 is: 122,101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,880.97 : 374,821.16 = 81,401.02 : x
  2. Step 2: Convert to fraction form
    249,880.97/374,821.16 = 81,401.02/x
  3. Step 3: Cross multiply
    249,880.97x = 374,821.16 × 81,401.02
  4. Step 4: Simplify right side
    249,880.97x = 30,510,825,108.36
  5. Step 5: Solve for x
    x = 30,510,825,108.36/249,880.97
  6. Step 6: Final answer
    x = 122,101.44

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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.