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Finding the Fourth Proportional to 153,380.21, 230,175.41 and 53,540.42

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Solution

The fourth proportional to 153,380.21, 230,175.41 and 53,540.42 is: 80,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,380.21 : 230,175.41 = 53,540.42 : x
  2. Step 2: Convert to fraction form
    153,380.21/230,175.41 = 53,540.42/x
  3. Step 3: Cross multiply
    153,380.21x = 230,175.41 × 53,540.42
  4. Step 4: Simplify right side
    153,380.21x = 12,323,686,706.49
  5. Step 5: Solve for x
    x = 12,323,686,706.49/153,380.21
  6. Step 6: Final answer
    x = 80,347.31

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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.