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Finding the Fourth Proportional to 316,577.38, 436,879.38 and 187,522.96

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Solution

The fourth proportional to 316,577.38, 436,879.38 and 187,522.96 is: 258,783.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,577.38 : 436,879.38 = 187,522.96 : x
  2. Step 2: Convert to fraction form
    316,577.38/436,879.38 = 187,522.96/x
  3. Step 3: Cross multiply
    316,577.38x = 436,879.38 × 187,522.96
  4. Step 4: Simplify right side
    316,577.38x = 81,924,914,500.56
  5. Step 5: Solve for x
    x = 81,924,914,500.56/316,577.38
  6. Step 6: Final answer
    x = 258,783.22

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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.