Home / 251,601.09-347,208.44-138,421.41

Finding the Fourth Proportional to 251,601.09, 347,208.44 and 138,421.41

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Solution

The fourth proportional to 251,601.09, 347,208.44 and 138,421.41 is: 191,020.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,601.09 : 347,208.44 = 138,421.41 : x
  2. Step 2: Convert to fraction form
    251,601.09/347,208.44 = 138,421.41/x
  3. Step 3: Cross multiply
    251,601.09x = 347,208.44 × 138,421.41
  4. Step 4: Simplify right side
    251,601.09x = 48,061,081,136.59
  5. Step 5: Solve for x
    x = 48,061,081,136.59/251,601.09
  6. Step 6: Final answer
    x = 191,020.96

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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.