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Finding the Fourth Proportional to 254,804.40, 351,621.11 and 140,082.21

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Solution

The fourth proportional to 254,804.40, 351,621.11 and 140,082.21 is: 193,308.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,804.40 : 351,621.11 = 140,082.21 : x
  2. Step 2: Convert to fraction form
    254,804.40/351,621.11 = 140,082.21/x
  3. Step 3: Cross multiply
    254,804.40x = 351,621.11 × 140,082.21
  4. Step 4: Simplify right side
    254,804.40x = 49,255,862,392.99
  5. Step 5: Solve for x
    x = 49,255,862,392.99/254,804.40
  6. Step 6: Final answer
    x = 193,308.52

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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.