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Finding the Fourth Proportional to 252,493.80, 377,756.55 and 163,920.30

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Solution

The fourth proportional to 252,493.80, 377,756.55 and 163,920.30 is: 245,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,493.80 : 377,756.55 = 163,920.30 : x
  2. Step 2: Convert to fraction form
    252,493.80/377,756.55 = 163,920.30/x
  3. Step 3: Cross multiply
    252,493.80x = 377,756.55 × 163,920.30
  4. Step 4: Simplify right side
    252,493.80x = 61,921,967,002.97
  5. Step 5: Solve for x
    x = 61,921,967,002.97/252,493.80
  6. Step 6: Final answer
    x = 245,241.53

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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.