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Finding the Fourth Proportional to 344,082.80, 515,087.40 and 302,610.80

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Solution

The fourth proportional to 344,082.80, 515,087.40 and 302,610.80 is: 453,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,082.80 : 515,087.40 = 302,610.80 : x
  2. Step 2: Convert to fraction form
    344,082.80/515,087.40 = 302,610.80/x
  3. Step 3: Cross multiply
    344,082.80x = 515,087.40 × 302,610.80
  4. Step 4: Simplify right side
    344,082.80x = 155,871,010,183.92
  5. Step 5: Solve for x
    x = 155,871,010,183.92/344,082.80
  6. Step 6: Final answer
    x = 453,004.36

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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.