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Finding the Fourth Proportional to 382,959.52, 528,463.43 and 210,843.97

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Solution

The fourth proportional to 382,959.52, 528,463.43 and 210,843.97 is: 290,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,959.52 : 528,463.43 = 210,843.97 : x
  2. Step 2: Convert to fraction form
    382,959.52/528,463.43 = 210,843.97/x
  3. Step 3: Cross multiply
    382,959.52x = 528,463.43 × 210,843.97
  4. Step 4: Simplify right side
    382,959.52x = 111,423,327,581.02
  5. Step 5: Solve for x
    x = 111,423,327,581.02/382,959.52
  6. Step 6: Final answer
    x = 290,953.28

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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.