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Finding the Fourth Proportional to 254,881.76, 351,745.85 and 140,169.12

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Solution

The fourth proportional to 254,881.76, 351,745.85 and 140,169.12 is: 193,438.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,881.76 : 351,745.85 = 140,169.12 : x
  2. Step 2: Convert to fraction form
    254,881.76/351,745.85 = 140,169.12/x
  3. Step 3: Cross multiply
    254,881.76x = 351,745.85 × 140,169.12
  4. Step 4: Simplify right side
    254,881.76x = 49,303,907,694.40
  5. Step 5: Solve for x
    x = 49,303,907,694.40/254,881.76
  6. Step 6: Final answer
    x = 193,438.35

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1.5x scale

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.