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Finding the Fourth Proportional to 384,074.84, 529,944.14 and 220,699.79

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Solution

The fourth proportional to 384,074.84, 529,944.14 and 220,699.79 is: 304,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,074.84 : 529,944.14 = 220,699.79 : x
  2. Step 2: Convert to fraction form
    384,074.84/529,944.14 = 220,699.79/x
  3. Step 3: Cross multiply
    384,074.84x = 529,944.14 × 220,699.79
  4. Step 4: Simplify right side
    384,074.84x = 116,958,557,760.01
  5. Step 5: Solve for x
    x = 116,958,557,760.01/384,074.84
  6. Step 6: Final answer
    x = 304,520.23

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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.