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Finding the Fourth Proportional to 364.46, 503.08 and 305.33

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Solution

The fourth proportional to 364.46, 503.08 and 305.33 is: 421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.46 : 503.08 = 305.33 : x
  2. Step 2: Convert to fraction form
    364.46/503.08 = 305.33/x
  3. Step 3: Cross multiply
    364.46x = 503.08 × 305.33
  4. Step 4: Simplify right side
    364.46x = 153,602.14
  5. Step 5: Solve for x
    x = 153,602.14/364.46
  6. Step 6: Final answer
    x = 421.46

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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.