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Finding the Fourth Proportional to 270,620.47, 373,026.02 and 213,168.78

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Solution

The fourth proportional to 270,620.47, 373,026.02 and 213,168.78 is: 293,834.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,620.47 : 373,026.02 = 213,168.78 : x
  2. Step 2: Convert to fraction form
    270,620.47/373,026.02 = 213,168.78/x
  3. Step 3: Cross multiply
    270,620.47x = 373,026.02 × 213,168.78
  4. Step 4: Simplify right side
    270,620.47x = 79,517,501,591.66
  5. Step 5: Solve for x
    x = 79,517,501,591.66/270,620.47
  6. Step 6: Final answer
    x = 293,834.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.