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Finding the Fourth Proportional to 249,889.58, 374,834.04 and 81,409.62

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Solution

The fourth proportional to 249,889.58, 374,834.04 and 81,409.62 is: 122,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,889.58 : 374,834.04 = 81,409.62 : x
  2. Step 2: Convert to fraction form
    249,889.58/374,834.04 = 81,409.62/x
  3. Step 3: Cross multiply
    249,889.58x = 374,834.04 × 81,409.62
  4. Step 4: Simplify right side
    249,889.58x = 30,515,096,759.46
  5. Step 5: Solve for x
    x = 30,515,096,759.46/249,889.58
  6. Step 6: Final answer
    x = 122,114.32

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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.