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Finding the Fourth Proportional to 399,941.88, 600,134.24 and 239,623.84

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Solution

The fourth proportional to 399,941.88, 600,134.24 and 239,623.84 is: 359,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,941.88 : 600,134.24 = 239,623.84 : x
  2. Step 2: Convert to fraction form
    399,941.88/600,134.24 = 239,623.84/x
  3. Step 3: Cross multiply
    399,941.88x = 600,134.24 × 239,623.84
  4. Step 4: Simplify right side
    399,941.88x = 143,806,471,104.28
  5. Step 5: Solve for x
    x = 143,806,471,104.28/399,941.88
  6. Step 6: Final answer
    x = 359,568.42

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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.