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Finding the Fourth Proportional to 379,744.59, 524,179.50 and 218,663.84

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Solution

The fourth proportional to 379,744.59, 524,179.50 and 218,663.84 is: 301,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,744.59 : 524,179.50 = 218,663.84 : x
  2. Step 2: Convert to fraction form
    379,744.59/524,179.50 = 218,663.84/x
  3. Step 3: Cross multiply
    379,744.59x = 524,179.50 × 218,663.84
  4. Step 4: Simplify right side
    379,744.59x = 114,619,099,698.38
  5. Step 5: Solve for x
    x = 114,619,099,698.38/379,744.59
  6. Step 6: Final answer
    x = 301,832.08

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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.