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Finding the Fourth Proportional to 353,642.05, 530,590.97 and 218,548

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Solution

The fourth proportional to 353,642.05, 530,590.97 and 218,548 is: 327,901.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,642.05 : 530,590.97 = 218,548 : x
  2. Step 2: Convert to fraction form
    353,642.05/530,590.97 = 218,548/x
  3. Step 3: Cross multiply
    353,642.05x = 530,590.97 × 218,548
  4. Step 4: Simplify right side
    353,642.05x = 115,959,595,311.56
  5. Step 5: Solve for x
    x = 115,959,595,311.56/353,642.05
  6. Step 6: Final answer
    x = 327,901.04

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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.