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Finding the Fourth Proportional to 379,891.01, 524,259.44 and 218,752.85

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Solution

The fourth proportional to 379,891.01, 524,259.44 and 218,752.85 is: 301,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,891.01 : 524,259.44 = 218,752.85 : x
  2. Step 2: Convert to fraction form
    379,891.01/524,259.44 = 218,752.85/x
  3. Step 3: Cross multiply
    379,891.01x = 524,259.44 × 218,752.85
  4. Step 4: Simplify right side
    379,891.01x = 114,683,247,676.61
  5. Step 5: Solve for x
    x = 114,683,247,676.61/379,891.01
  6. Step 6: Final answer
    x = 301,884.60

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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.