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Finding the Fourth Proportional to 477,021.80, 715,088 and 161,257.88

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Solution

The fourth proportional to 477,021.80, 715,088 and 161,257.88 is: 241,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,021.80 : 715,088 = 161,257.88 : x
  2. Step 2: Convert to fraction form
    477,021.80/715,088 = 161,257.88/x
  3. Step 3: Cross multiply
    477,021.80x = 715,088 × 161,257.88
  4. Step 4: Simplify right side
    477,021.80x = 115,313,574,893.44
  5. Step 5: Solve for x
    x = 115,313,574,893.44/477,021.80
  6. Step 6: Final answer
    x = 241,736.49

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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.