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Finding the Fourth Proportional to 439,399.29, 606,333.27 and 255,671.85

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Solution

The fourth proportional to 439,399.29, 606,333.27 and 255,671.85 is: 352,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,399.29 : 606,333.27 = 255,671.85 : x
  2. Step 2: Convert to fraction form
    439,399.29/606,333.27 = 255,671.85/x
  3. Step 3: Cross multiply
    439,399.29x = 606,333.27 × 255,671.85
  4. Step 4: Simplify right side
    439,399.29x = 155,022,348,857.45
  5. Step 5: Solve for x
    x = 155,022,348,857.45/439,399.29
  6. Step 6: Final answer
    x = 352,805.19

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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.