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Finding the Fourth Proportional to 455,892.72, 629,133.87 and 249,165.27

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Solution

The fourth proportional to 455,892.72, 629,133.87 and 249,165.27 is: 343,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,892.72 : 629,133.87 = 249,165.27 : x
  2. Step 2: Convert to fraction form
    455,892.72/629,133.87 = 249,165.27/x
  3. Step 3: Cross multiply
    455,892.72x = 629,133.87 × 249,165.27
  4. Step 4: Simplify right side
    455,892.72x = 156,758,310,584.70
  5. Step 5: Solve for x
    x = 156,758,310,584.70/455,892.72
  6. Step 6: Final answer
    x = 343,849.12

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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.