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Finding the Fourth Proportional to 272,806.86, 376,343.08 and 211,961.10

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Solution

The fourth proportional to 272,806.86, 376,343.08 and 211,961.10 is: 292,405.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,806.86 : 376,343.08 = 211,961.10 : x
  2. Step 2: Convert to fraction form
    272,806.86/376,343.08 = 211,961.10/x
  3. Step 3: Cross multiply
    272,806.86x = 376,343.08 × 211,961.10
  4. Step 4: Simplify right side
    272,806.86x = 79,770,092,684.29
  5. Step 5: Solve for x
    x = 79,770,092,684.29/272,806.86
  6. Step 6: Final answer
    x = 292,405.01

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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.