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Finding the Fourth Proportional to 309,606, 464,414.76 and 87,995.76

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Solution

The fourth proportional to 309,606, 464,414.76 and 87,995.76 is: 131,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,606 : 464,414.76 = 87,995.76 : x
  2. Step 2: Convert to fraction form
    309,606/464,414.76 = 87,995.76/x
  3. Step 3: Cross multiply
    309,606x = 464,414.76 × 87,995.76
  4. Step 4: Simplify right side
    309,606x = 40,866,529,761.42
  5. Step 5: Solve for x
    x = 40,866,529,761.42/309,606
  6. Step 6: Final answer
    x = 131,995.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.