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Finding the Fourth Proportional to 252,528.90, 378,793.35 and 65,540.40

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Solution

The fourth proportional to 252,528.90, 378,793.35 and 65,540.40 is: 98,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,528.90 : 378,793.35 = 65,540.40 : x
  2. Step 2: Convert to fraction form
    252,528.90/378,793.35 = 65,540.40/x
  3. Step 3: Cross multiply
    252,528.90x = 378,793.35 × 65,540.40
  4. Step 4: Simplify right side
    252,528.90x = 24,826,267,676.34
  5. Step 5: Solve for x
    x = 24,826,267,676.34/252,528.90
  6. Step 6: Final answer
    x = 98,310.60

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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.