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Finding the Fourth Proportional to 302,057.78, 453,090.39 and 131,239.94

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Solution

The fourth proportional to 302,057.78, 453,090.39 and 131,239.94 is: 196,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,057.78 : 453,090.39 = 131,239.94 : x
  2. Step 2: Convert to fraction form
    302,057.78/453,090.39 = 131,239.94/x
  3. Step 3: Cross multiply
    302,057.78x = 453,090.39 × 131,239.94
  4. Step 4: Simplify right side
    302,057.78x = 59,463,555,598.18
  5. Step 5: Solve for x
    x = 59,463,555,598.18/302,057.78
  6. Step 6: Final answer
    x = 196,861.53

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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.