Home / 251,559.20-347,157.09-138,381.95

Finding the Fourth Proportional to 251,559.20, 347,157.09 and 138,381.95

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Solution

The fourth proportional to 251,559.20, 347,157.09 and 138,381.95 is: 190,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,559.20 : 347,157.09 = 138,381.95 : x
  2. Step 2: Convert to fraction form
    251,559.20/347,157.09 = 138,381.95/x
  3. Step 3: Cross multiply
    251,559.20x = 347,157.09 × 138,381.95
  4. Step 4: Simplify right side
    251,559.20x = 48,040,275,070.53
  5. Step 5: Solve for x
    x = 48,040,275,070.53/251,559.20
  6. Step 6: Final answer
    x = 190,970.06

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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.