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Finding the Fourth Proportional to 272,758.31, 376,379.51 and 151,910.84

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Solution

The fourth proportional to 272,758.31, 376,379.51 and 151,910.84 is: 209,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,758.31 : 376,379.51 = 151,910.84 : x
  2. Step 2: Convert to fraction form
    272,758.31/376,379.51 = 151,910.84/x
  3. Step 3: Cross multiply
    272,758.31x = 376,379.51 × 151,910.84
  4. Step 4: Simplify right side
    272,758.31x = 57,176,128,558.78
  5. Step 5: Solve for x
    x = 57,176,128,558.78/272,758.31
  6. Step 6: Final answer
    x = 209,621.95

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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.