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Finding the Fourth Proportional to 363,512.56, 545,184.04 and 138,790.48

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Solution

The fourth proportional to 363,512.56, 545,184.04 and 138,790.48 is: 208,153.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,512.56 : 545,184.04 = 138,790.48 : x
  2. Step 2: Convert to fraction form
    363,512.56/545,184.04 = 138,790.48/x
  3. Step 3: Cross multiply
    363,512.56x = 545,184.04 × 138,790.48
  4. Step 4: Simplify right side
    363,512.56x = 75,666,354,599.94
  5. Step 5: Solve for x
    x = 75,666,354,599.94/363,512.56
  6. Step 6: Final answer
    x = 208,153.34

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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.