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Finding the Fourth Proportional to 272,244.42, 408,366.63 and 85,270.50

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Solution

The fourth proportional to 272,244.42, 408,366.63 and 85,270.50 is: 127,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,244.42 : 408,366.63 = 85,270.50 : x
  2. Step 2: Convert to fraction form
    272,244.42/408,366.63 = 85,270.50/x
  3. Step 3: Cross multiply
    272,244.42x = 408,366.63 × 85,270.50
  4. Step 4: Simplify right side
    272,244.42x = 34,821,626,723.42
  5. Step 5: Solve for x
    x = 34,821,626,723.42/272,244.42
  6. Step 6: Final answer
    x = 127,905.75

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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.