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Finding the Fourth Proportional to 349,200.72, 481,878.72 and 198,288

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Solution

The fourth proportional to 349,200.72, 481,878.72 and 198,288 is: 273,627.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,200.72 : 481,878.72 = 198,288 : x
  2. Step 2: Convert to fraction form
    349,200.72/481,878.72 = 198,288/x
  3. Step 3: Cross multiply
    349,200.72x = 481,878.72 × 198,288
  4. Step 4: Simplify right side
    349,200.72x = 95,550,767,631.36
  5. Step 5: Solve for x
    x = 95,550,767,631.36/349,200.72
  6. Step 6: Final answer
    x = 273,627.06

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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.