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Finding the Fourth Proportional to 296,997.18, 445,459.58 and 86,635.32

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Solution

The fourth proportional to 296,997.18, 445,459.58 and 86,635.32 is: 129,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,997.18 : 445,459.58 = 86,635.32 : x
  2. Step 2: Convert to fraction form
    296,997.18/445,459.58 = 86,635.32/x
  3. Step 3: Cross multiply
    296,997.18x = 445,459.58 × 86,635.32
  4. Step 4: Simplify right side
    296,997.18x = 38,592,533,260.37
  5. Step 5: Solve for x
    x = 38,592,533,260.37/296,997.18
  6. Step 6: Final answer
    x = 129,942.42

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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.