Home / 251,965.30-347,712.58-137,243.60

Finding the Fourth Proportional to 251,965.30, 347,712.58 and 137,243.60

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Solution

The fourth proportional to 251,965.30, 347,712.58 and 137,243.60 is: 189,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,965.30 : 347,712.58 = 137,243.60 : x
  2. Step 2: Convert to fraction form
    251,965.30/347,712.58 = 137,243.60/x
  3. Step 3: Cross multiply
    251,965.30x = 347,712.58 × 137,243.60
  4. Step 4: Simplify right side
    251,965.30x = 47,721,326,244.49
  5. Step 5: Solve for x
    x = 47,721,326,244.49/251,965.30
  6. Step 6: Final answer
    x = 189,396.42

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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.