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Finding the Fourth Proportional to 320,952.43, 481,248.73 and 219,864.79

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Solution

The fourth proportional to 320,952.43, 481,248.73 and 219,864.79 is: 329,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,952.43 : 481,248.73 = 219,864.79 : x
  2. Step 2: Convert to fraction form
    320,952.43/481,248.73 = 219,864.79/x
  3. Step 3: Cross multiply
    320,952.43x = 481,248.73 × 219,864.79
  4. Step 4: Simplify right side
    320,952.43x = 105,809,650,959.22
  5. Step 5: Solve for x
    x = 105,809,650,959.22/320,952.43
  6. Step 6: Final answer
    x = 329,673.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.