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Finding the Fourth Proportional to 272,100.54, 408,154.96 and 103,630.19

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Solution

The fourth proportional to 272,100.54, 408,154.96 and 103,630.19 is: 155,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,100.54 : 408,154.96 = 103,630.19 : x
  2. Step 2: Convert to fraction form
    272,100.54/408,154.96 = 103,630.19/x
  3. Step 3: Cross multiply
    272,100.54x = 408,154.96 × 103,630.19
  4. Step 4: Simplify right side
    272,100.54x = 42,297,176,054.24
  5. Step 5: Solve for x
    x = 42,297,176,054.24/272,100.54
  6. Step 6: Final answer
    x = 155,446.87

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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.