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Finding the Fourth Proportional to 479,889.36, 719,872.31 and 164,349

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Solution

The fourth proportional to 479,889.36, 719,872.31 and 164,349 is: 246,536.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,889.36 : 719,872.31 = 164,349 : x
  2. Step 2: Convert to fraction form
    479,889.36/719,872.31 = 164,349/x
  3. Step 3: Cross multiply
    479,889.36x = 719,872.31 × 164,349
  4. Step 4: Simplify right side
    479,889.36x = 118,310,294,687.06
  5. Step 5: Solve for x
    x = 118,310,294,687.06/479,889.36
  6. Step 6: Final answer
    x = 246,536.61

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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.