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Finding the Fourth Proportional to 273,393.60, 410,090.40 and 76,401.60

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Solution

The fourth proportional to 273,393.60, 410,090.40 and 76,401.60 is: 114,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,393.60 : 410,090.40 = 76,401.60 : x
  2. Step 2: Convert to fraction form
    273,393.60/410,090.40 = 76,401.60/x
  3. Step 3: Cross multiply
    273,393.60x = 410,090.40 × 76,401.60
  4. Step 4: Simplify right side
    273,393.60x = 31,331,562,704.64
  5. Step 5: Solve for x
    x = 31,331,562,704.64/273,393.60
  6. Step 6: Final answer
    x = 114,602.40

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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.