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Finding the Fourth Proportional to 349,807.80, 482,651.82 and 198,987.96

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Solution

The fourth proportional to 349,807.80, 482,651.82 and 198,987.96 is: 274,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,807.80 : 482,651.82 = 198,987.96 : x
  2. Step 2: Convert to fraction form
    349,807.80/482,651.82 = 198,987.96/x
  3. Step 3: Cross multiply
    349,807.80x = 482,651.82 × 198,987.96
  4. Step 4: Simplify right side
    349,807.80x = 96,041,901,052.09
  5. Step 5: Solve for x
    x = 96,041,901,052.09/349,807.80
  6. Step 6: Final answer
    x = 274,556.20

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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.