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Finding the Fourth Proportional to 354,033.86, 531,051.28 and 270,269.61

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Solution

The fourth proportional to 354,033.86, 531,051.28 and 270,269.61 is: 405,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,033.86 : 531,051.28 = 270,269.61 : x
  2. Step 2: Convert to fraction form
    354,033.86/531,051.28 = 270,269.61/x
  3. Step 3: Cross multiply
    354,033.86x = 531,051.28 × 270,269.61
  4. Step 4: Simplify right side
    354,033.86x = 143,527,023,011.28
  5. Step 5: Solve for x
    x = 143,527,023,011.28/354,033.86
  6. Step 6: Final answer
    x = 405,404.80

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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.