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Finding the Fourth Proportional to 349,051.55, 481,690.85 and 198,148.55

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Solution

The fourth proportional to 349,051.55, 481,690.85 and 198,148.55 is: 273,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,051.55 : 481,690.85 = 198,148.55 : x
  2. Step 2: Convert to fraction form
    349,051.55/481,690.85 = 198,148.55/x
  3. Step 3: Cross multiply
    349,051.55x = 481,690.85 × 198,148.55
  4. Step 4: Simplify right side
    349,051.55x = 95,446,340,076.57
  5. Step 5: Solve for x
    x = 95,446,340,076.57/349,051.55
  6. Step 6: Final answer
    x = 273,444.83

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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.