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Finding the Fourth Proportional to 240,158.88, 331,431.84 and 138,199.86

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Solution

The fourth proportional to 240,158.88, 331,431.84 and 138,199.86 is: 190,723.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,158.88 : 331,431.84 = 138,199.86 : x
  2. Step 2: Convert to fraction form
    240,158.88/331,431.84 = 138,199.86/x
  3. Step 3: Cross multiply
    240,158.88x = 331,431.84 × 138,199.86
  4. Step 4: Simplify right side
    240,158.88x = 45,803,833,887.54
  5. Step 5: Solve for x
    x = 45,803,833,887.54/240,158.88
  6. Step 6: Final answer
    x = 190,723.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.