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Finding the Fourth Proportional to 249,921.01, 374,843.00 and 81,440.91

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Solution

The fourth proportional to 249,921.01, 374,843.00 and 81,440.91 is: 122,148.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,921.01 : 374,843.00 = 81,440.91 : x
  2. Step 2: Convert to fraction form
    249,921.01/374,843.00 = 81,440.91/x
  3. Step 3: Cross multiply
    249,921.01x = 374,843.00 × 81,440.91
  4. Step 4: Simplify right side
    249,921.01x = 30,527,555,230.73
  5. Step 5: Solve for x
    x = 30,527,555,230.73/249,921.01
  6. Step 6: Final answer
    x = 122,148.81

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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.