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Finding the Fourth Proportional to 393,235.80, 589,855.26 and 119,684.64

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Solution

The fourth proportional to 393,235.80, 589,855.26 and 119,684.64 is: 179,527.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,235.80 : 589,855.26 = 119,684.64 : x
  2. Step 2: Convert to fraction form
    393,235.80/589,855.26 = 119,684.64/x
  3. Step 3: Cross multiply
    393,235.80x = 589,855.26 × 119,684.64
  4. Step 4: Simplify right side
    393,235.80x = 70,596,614,445.21
  5. Step 5: Solve for x
    x = 70,596,614,445.21/393,235.80
  6. Step 6: Final answer
    x = 179,527.43

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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.