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Finding the Fourth Proportional to 272,755.41, 376,402.59 and 151,919.88

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Solution

The fourth proportional to 272,755.41, 376,402.59 and 151,919.88 is: 209,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,755.41 : 376,402.59 = 151,919.88 : x
  2. Step 2: Convert to fraction form
    272,755.41/376,402.59 = 151,919.88/x
  3. Step 3: Cross multiply
    272,755.41x = 376,402.59 × 151,919.88
  4. Step 4: Simplify right side
    272,755.41x = 57,183,036,304.49
  5. Step 5: Solve for x
    x = 57,183,036,304.49/272,755.41
  6. Step 6: Final answer
    x = 209,649.50

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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.