Home / 251,942.30-347,680.35-138,765.05

Finding the Fourth Proportional to 251,942.30, 347,680.35 and 138,765.05

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Solution

The fourth proportional to 251,942.30, 347,680.35 and 138,765.05 is: 191,495.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,942.30 : 347,680.35 = 138,765.05 : x
  2. Step 2: Convert to fraction form
    251,942.30/347,680.35 = 138,765.05/x
  3. Step 3: Cross multiply
    251,942.30x = 347,680.35 × 138,765.05
  4. Step 4: Simplify right side
    251,942.30x = 48,245,880,717.17
  5. Step 5: Solve for x
    x = 48,245,880,717.17/251,942.30
  6. Step 6: Final answer
    x = 191,495.76

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1.5x scale

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.