Home / 251,919.41-347,632.83-138,742.16

Finding the Fourth Proportional to 251,919.41, 347,632.83 and 138,742.16

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Solution

The fourth proportional to 251,919.41, 347,632.83 and 138,742.16 is: 191,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,919.41 : 347,632.83 = 138,742.16 : x
  2. Step 2: Convert to fraction form
    251,919.41/347,632.83 = 138,742.16/x
  3. Step 3: Cross multiply
    251,919.41x = 347,632.83 × 138,742.16
  4. Step 4: Simplify right side
    251,919.41x = 48,231,327,982.95
  5. Step 5: Solve for x
    x = 48,231,327,982.95/251,919.41
  6. Step 6: Final answer
    x = 191,455.39

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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.