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Finding the Fourth Proportional to 273,380.40, 410,135.40 and 140,281.20

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Solution

The fourth proportional to 273,380.40, 410,135.40 and 140,281.20 is: 210,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,380.40 : 410,135.40 = 140,281.20 : x
  2. Step 2: Convert to fraction form
    273,380.40/410,135.40 = 140,281.20/x
  3. Step 3: Cross multiply
    273,380.40x = 410,135.40 × 140,281.20
  4. Step 4: Simplify right side
    273,380.40x = 57,534,286,074.48
  5. Step 5: Solve for x
    x = 57,534,286,074.48/273,380.40
  6. Step 6: Final answer
    x = 210,455.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.