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Finding the Fourth Proportional to 364.76, 503.16 and 321.20

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Solution

The fourth proportional to 364.76, 503.16 and 321.20 is: 443.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.76 : 503.16 = 321.20 : x
  2. Step 2: Convert to fraction form
    364.76/503.16 = 321.20/x
  3. Step 3: Cross multiply
    364.76x = 503.16 × 321.20
  4. Step 4: Simplify right side
    364.76x = 161,614.99
  5. Step 5: Solve for x
    x = 161,614.99/364.76
  6. Step 6: Final answer
    x = 443.07

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Find fourth proportional to 182.38, 251.58 and 160.60
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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.