Home / 384,350.38-576,466.44-128,187.46

Finding the Fourth Proportional to 384,350.38, 576,466.44 and 128,187.46

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Solution

The fourth proportional to 384,350.38, 576,466.44 and 128,187.46 is: 192,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,350.38 : 576,466.44 = 128,187.46 : x
  2. Step 2: Convert to fraction form
    384,350.38/576,466.44 = 128,187.46/x
  3. Step 3: Cross multiply
    384,350.38x = 576,466.44 × 128,187.46
  4. Step 4: Simplify right side
    384,350.38x = 73,895,768,958.72
  5. Step 5: Solve for x
    x = 73,895,768,958.72/384,350.38
  6. Step 6: Final answer
    x = 192,261.47

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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.