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Finding the Fourth Proportional to 455,893.72, 629,135.25 and 249,166.27

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Solution

The fourth proportional to 455,893.72, 629,135.25 and 249,166.27 is: 343,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,893.72 : 629,135.25 = 249,166.27 : x
  2. Step 2: Convert to fraction form
    455,893.72/629,135.25 = 249,166.27/x
  3. Step 3: Cross multiply
    455,893.72x = 629,135.25 × 249,166.27
  4. Step 4: Simplify right side
    455,893.72x = 156,759,283,568.02
  5. Step 5: Solve for x
    x = 156,759,283,568.02/455,893.72
  6. Step 6: Final answer
    x = 343,850.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.