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Finding the Fourth Proportional to 310,885.20, 465,982.20 and 170,744.40

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Solution

The fourth proportional to 310,885.20, 465,982.20 and 170,744.40 is: 255,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,885.20 : 465,982.20 = 170,744.40 : x
  2. Step 2: Convert to fraction form
    310,885.20/465,982.20 = 170,744.40/x
  3. Step 3: Cross multiply
    310,885.20x = 465,982.20 × 170,744.40
  4. Step 4: Simplify right side
    310,885.20x = 79,563,851,149.68
  5. Step 5: Solve for x
    x = 79,563,851,149.68/310,885.20
  6. Step 6: Final answer
    x = 255,926.79

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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.