Home / 254,949.21-351,832.19-138,663.72

Finding the Fourth Proportional to 254,949.21, 351,832.19 and 138,663.72

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Solution

The fourth proportional to 254,949.21, 351,832.19 and 138,663.72 is: 191,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,949.21 : 351,832.19 = 138,663.72 : x
  2. Step 2: Convert to fraction form
    254,949.21/351,832.19 = 138,663.72/x
  3. Step 3: Cross multiply
    254,949.21x = 351,832.19 × 138,663.72
  4. Step 4: Simplify right side
    254,949.21x = 48,786,359,587.83
  5. Step 5: Solve for x
    x = 48,786,359,587.83/254,949.21
  6. Step 6: Final answer
    x = 191,357.17

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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.