Home / 251,961.05-347,706.73-137,239.34

Finding the Fourth Proportional to 251,961.05, 347,706.73 and 137,239.34

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Solution

The fourth proportional to 251,961.05, 347,706.73 and 137,239.34 is: 189,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,961.05 : 347,706.73 = 137,239.34 : x
  2. Step 2: Convert to fraction form
    251,961.05/347,706.73 = 137,239.34/x
  3. Step 3: Cross multiply
    251,961.05x = 347,706.73 × 137,239.34
  4. Step 4: Simplify right side
    251,961.05x = 47,719,039,714.03
  5. Step 5: Solve for x
    x = 47,719,039,714.03/251,961.05
  6. Step 6: Final answer
    x = 189,390.55

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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.