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Finding the Fourth Proportional to 168,328.88, 252,438.60 and 55,978.88

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Solution

The fourth proportional to 168,328.88, 252,438.60 and 55,978.88 is: 83,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,328.88 : 252,438.60 = 55,978.88 : x
  2. Step 2: Convert to fraction form
    168,328.88/252,438.60 = 55,978.88/x
  3. Step 3: Cross multiply
    168,328.88x = 252,438.60 × 55,978.88
  4. Step 4: Simplify right side
    168,328.88x = 14,131,230,096.77
  5. Step 5: Solve for x
    x = 14,131,230,096.77/168,328.88
  6. Step 6: Final answer
    x = 83,950.12

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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.