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Finding the Fourth Proportional to 439,238.50, 606,149.13 and 238,034.50

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Solution

The fourth proportional to 439,238.50, 606,149.13 and 238,034.50 is: 328,487.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,238.50 : 606,149.13 = 238,034.50 : x
  2. Step 2: Convert to fraction form
    439,238.50/606,149.13 = 238,034.50/x
  3. Step 3: Cross multiply
    439,238.50x = 606,149.13 × 238,034.50
  4. Step 4: Simplify right side
    439,238.50x = 144,284,405,084.99
  5. Step 5: Solve for x
    x = 144,284,405,084.99/439,238.50
  6. Step 6: Final answer
    x = 328,487.61

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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.