Home / 251,608.28-347,212.32-138,431.04

Finding the Fourth Proportional to 251,608.28, 347,212.32 and 138,431.04

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Solution

The fourth proportional to 251,608.28, 347,212.32 and 138,431.04 is: 191,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,608.28 : 347,212.32 = 138,431.04 : x
  2. Step 2: Convert to fraction form
    251,608.28/347,212.32 = 138,431.04/x
  3. Step 3: Cross multiply
    251,608.28x = 347,212.32 × 138,431.04
  4. Step 4: Simplify right side
    251,608.28x = 48,064,962,558.41
  5. Step 5: Solve for x
    x = 48,064,962,558.41/251,608.28
  6. Step 6: Final answer
    x = 191,030.93

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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.