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Finding the Fourth Proportional to 364.85, 503.55 and 207.55

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Solution

The fourth proportional to 364.85, 503.55 and 207.55 is: 286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.85 : 503.55 = 207.55 : x
  2. Step 2: Convert to fraction form
    364.85/503.55 = 207.55/x
  3. Step 3: Cross multiply
    364.85x = 503.55 × 207.55
  4. Step 4: Simplify right side
    364.85x = 104,508.25
  5. Step 5: Solve for x
    x = 104,508.25/364.85
  6. Step 6: Final answer
    x = 286.45

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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.