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Finding the Fourth Proportional to 439,770.66, 606,884.68 and 238,566.66

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Solution

The fourth proportional to 439,770.66, 606,884.68 and 238,566.66 is: 329,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,770.66 : 606,884.68 = 238,566.66 : x
  2. Step 2: Convert to fraction form
    439,770.66/606,884.68 = 238,566.66/x
  3. Step 3: Cross multiply
    439,770.66x = 606,884.68 × 238,566.66
  4. Step 4: Simplify right side
    439,770.66x = 144,782,451,112.77
  5. Step 5: Solve for x
    x = 144,782,451,112.77/439,770.66
  6. Step 6: Final answer
    x = 329,222.63

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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.