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Finding the Fourth Proportional to 658,791.36, 988,245.39 and 185,480.82

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Solution

The fourth proportional to 658,791.36, 988,245.39 and 185,480.82 is: 278,237.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,791.36 : 988,245.39 = 185,480.82 : x
  2. Step 2: Convert to fraction form
    658,791.36/988,245.39 = 185,480.82/x
  3. Step 3: Cross multiply
    658,791.36x = 988,245.39 × 185,480.82
  4. Step 4: Simplify right side
    658,791.36x = 183,300,565,298.42
  5. Step 5: Solve for x
    x = 183,300,565,298.42/658,791.36
  6. Step 6: Final answer
    x = 278,237.66

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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.