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Finding the Fourth Proportional to 364.85, 503.14 and 281.82

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Solution

The fourth proportional to 364.85, 503.14 and 281.82 is: 388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.85 : 503.14 = 281.82 : x
  2. Step 2: Convert to fraction form
    364.85/503.14 = 281.82/x
  3. Step 3: Cross multiply
    364.85x = 503.14 × 281.82
  4. Step 4: Simplify right side
    364.85x = 141,794.91
  5. Step 5: Solve for x
    x = 141,794.91/364.85
  6. Step 6: Final answer
    x = 388.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.