Home / 301,090.55-451,711.75-212,517.05

Finding the Fourth Proportional to 301,090.55, 451,711.75 and 212,517.05

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Solution

The fourth proportional to 301,090.55, 451,711.75 and 212,517.05 is: 318,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,090.55 : 451,711.75 = 212,517.05 : x
  2. Step 2: Convert to fraction form
    301,090.55/451,711.75 = 212,517.05/x
  3. Step 3: Cross multiply
    301,090.55x = 451,711.75 × 212,517.05
  4. Step 4: Simplify right side
    301,090.55x = 95,996,445,770.49
  5. Step 5: Solve for x
    x = 95,996,445,770.49/301,090.55
  6. Step 6: Final answer
    x = 318,829.16

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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.