Home / 251,558.28-347,143.32-138,381.03

Finding the Fourth Proportional to 251,558.28, 347,143.32 and 138,381.03

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Solution

The fourth proportional to 251,558.28, 347,143.32 and 138,381.03 is: 190,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,558.28 : 347,143.32 = 138,381.03 : x
  2. Step 2: Convert to fraction form
    251,558.28/347,143.32 = 138,381.03/x
  3. Step 3: Cross multiply
    251,558.28x = 347,143.32 × 138,381.03
  4. Step 4: Simplify right side
    251,558.28x = 48,038,050,179.22
  5. Step 5: Solve for x
    x = 48,038,050,179.22/251,558.28
  6. Step 6: Final answer
    x = 190,961.91

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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.