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Finding the Fourth Proportional to 272,860.40, 410,165.40 and 194,517.20

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Solution

The fourth proportional to 272,860.40, 410,165.40 and 194,517.20 is: 292,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,860.40 : 410,165.40 = 194,517.20 : x
  2. Step 2: Convert to fraction form
    272,860.40/410,165.40 = 194,517.20/x
  3. Step 3: Cross multiply
    272,860.40x = 410,165.40 × 194,517.20
  4. Step 4: Simplify right side
    272,860.40x = 79,784,225,144.88
  5. Step 5: Solve for x
    x = 79,784,225,144.88/272,860.40
  6. Step 6: Final answer
    x = 292,399.43

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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.