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Finding the Fourth Proportional to 477,021.30, 715,087.26 and 161,257.38

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Solution

The fourth proportional to 477,021.30, 715,087.26 and 161,257.38 is: 241,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,021.30 : 715,087.26 = 161,257.38 : x
  2. Step 2: Convert to fraction form
    477,021.30/715,087.26 = 161,257.38/x
  3. Step 3: Cross multiply
    477,021.30x = 715,087.26 × 161,257.38
  4. Step 4: Simplify right side
    477,021.30x = 115,313,098,018.98
  5. Step 5: Solve for x
    x = 115,313,098,018.98/477,021.30
  6. Step 6: Final answer
    x = 241,735.74

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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.