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Finding the Fourth Proportional to 297,004.66, 445,499.64 and 86,644.42

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Solution

The fourth proportional to 297,004.66, 445,499.64 and 86,644.42 is: 129,964.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,004.66 : 445,499.64 = 86,644.42 : x
  2. Step 2: Convert to fraction form
    297,004.66/445,499.64 = 86,644.42/x
  3. Step 3: Cross multiply
    297,004.66x = 445,499.64 × 86,644.42
  4. Step 4: Simplify right side
    297,004.66x = 38,600,057,918.01
  5. Step 5: Solve for x
    x = 38,600,057,918.01/297,004.66
  6. Step 6: Final answer
    x = 129,964.49

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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.