Home / 251,734.08-347,380.20-138,534.96

Finding the Fourth Proportional to 251,734.08, 347,380.20 and 138,534.96

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Solution

The fourth proportional to 251,734.08, 347,380.20 and 138,534.96 is: 191,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,734.08 : 347,380.20 = 138,534.96 : x
  2. Step 2: Convert to fraction form
    251,734.08/347,380.20 = 138,534.96/x
  3. Step 3: Cross multiply
    251,734.08x = 347,380.20 × 138,534.96
  4. Step 4: Simplify right side
    251,734.08x = 48,124,302,111.79
  5. Step 5: Solve for x
    x = 48,124,302,111.79/251,734.08
  6. Step 6: Final answer
    x = 191,171.18

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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.