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Finding the Fourth Proportional to 272,956, 376,681.98 and 159,781.18

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Solution

The fourth proportional to 272,956, 376,681.98 and 159,781.18 is: 220,499.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,956 : 376,681.98 = 159,781.18 : x
  2. Step 2: Convert to fraction form
    272,956/376,681.98 = 159,781.18/x
  3. Step 3: Cross multiply
    272,956x = 376,681.98 × 159,781.18
  4. Step 4: Simplify right side
    272,956x = 60,186,691,249.14
  5. Step 5: Solve for x
    x = 60,186,691,249.14/272,956
  6. Step 6: Final answer
    x = 220,499.61

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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.