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Finding the Fourth Proportional to 249,993.73, 375,029.70 and 81,474.90

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Solution

The fourth proportional to 249,993.73, 375,029.70 and 81,474.90 is: 122,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,993.73 : 375,029.70 = 81,474.90 : x
  2. Step 2: Convert to fraction form
    249,993.73/375,029.70 = 81,474.90/x
  3. Step 3: Cross multiply
    249,993.73x = 375,029.70 × 81,474.90
  4. Step 4: Simplify right side
    249,993.73x = 30,555,507,304.53
  5. Step 5: Solve for x
    x = 30,555,507,304.53/249,993.73
  6. Step 6: Final answer
    x = 122,225.09

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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.