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Finding the Fourth Proportional to 399,986.70, 600,066.45 and 119,532.30

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Solution

The fourth proportional to 399,986.70, 600,066.45 and 119,532.30 is: 179,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,986.70 : 600,066.45 = 119,532.30 : x
  2. Step 2: Convert to fraction form
    399,986.70/600,066.45 = 119,532.30/x
  3. Step 3: Cross multiply
    399,986.70x = 600,066.45 × 119,532.30
  4. Step 4: Simplify right side
    399,986.70x = 71,727,322,921.34
  5. Step 5: Solve for x
    x = 71,727,322,921.34/399,986.70
  6. Step 6: Final answer
    x = 179,324.27

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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.