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Finding the Fourth Proportional to 249,883.52, 374,824.98 and 81,403.58

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Solution

The fourth proportional to 249,883.52, 374,824.98 and 81,403.58 is: 122,105.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,883.52 : 374,824.98 = 81,403.58 : x
  2. Step 2: Convert to fraction form
    249,883.52/374,824.98 = 81,403.58/x
  3. Step 3: Cross multiply
    249,883.52x = 374,824.98 × 81,403.58
  4. Step 4: Simplify right side
    249,883.52x = 30,512,096,182.49
  5. Step 5: Solve for x
    x = 30,512,096,182.49/249,883.52
  6. Step 6: Final answer
    x = 122,105.28

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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.