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Finding the Fourth Proportional to 383,990.16, 576,069.44 and 117,770.64

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Solution

The fourth proportional to 383,990.16, 576,069.44 and 117,770.64 is: 176,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,990.16 : 576,069.44 = 117,770.64 : x
  2. Step 2: Convert to fraction form
    383,990.16/576,069.44 = 117,770.64/x
  3. Step 3: Cross multiply
    383,990.16x = 576,069.44 × 117,770.64
  4. Step 4: Simplify right side
    383,990.16x = 67,844,066,633.24
  5. Step 5: Solve for x
    x = 67,844,066,633.24/383,990.16
  6. Step 6: Final answer
    x = 176,681.78

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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.