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Finding the Fourth Proportional to 254,804.59, 351,621.37 and 140,082.40

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Solution

The fourth proportional to 254,804.59, 351,621.37 and 140,082.40 is: 193,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,804.59 : 351,621.37 = 140,082.40 : x
  2. Step 2: Convert to fraction form
    254,804.59/351,621.37 = 140,082.40/x
  3. Step 3: Cross multiply
    254,804.59x = 351,621.37 × 140,082.40
  4. Step 4: Simplify right side
    254,804.59x = 49,255,964,568.26
  5. Step 5: Solve for x
    x = 49,255,964,568.26/254,804.59
  6. Step 6: Final answer
    x = 193,308.78

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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.