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Finding the Fourth Proportional to 301,011.31, 415,051.99 and 240,540.49

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Solution

The fourth proportional to 301,011.31, 415,051.99 and 240,540.49 is: 331,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,011.31 : 415,051.99 = 240,540.49 : x
  2. Step 2: Convert to fraction form
    301,011.31/415,051.99 = 240,540.49/x
  3. Step 3: Cross multiply
    301,011.31x = 415,051.99 × 240,540.49
  4. Step 4: Simplify right side
    301,011.31x = 99,836,809,050.08
  5. Step 5: Solve for x
    x = 99,836,809,050.08/301,011.31
  6. Step 6: Final answer
    x = 331,671.29

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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.