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Finding the Fourth Proportional to 450,082.88, 621,270.78 and 259,172.36

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Solution

The fourth proportional to 450,082.88, 621,270.78 and 259,172.36 is: 357,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,082.88 : 621,270.78 = 259,172.36 : x
  2. Step 2: Convert to fraction form
    450,082.88/621,270.78 = 259,172.36/x
  3. Step 3: Cross multiply
    450,082.88x = 621,270.78 × 259,172.36
  4. Step 4: Simplify right side
    450,082.88x = 161,016,214,251.64
  5. Step 5: Solve for x
    x = 161,016,214,251.64/450,082.88
  6. Step 6: Final answer
    x = 357,747.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.