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Finding the Fourth Proportional to 379.76, 566.48 and 336.02

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Solution

The fourth proportional to 379.76, 566.48 and 336.02 is: 501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.76 : 566.48 = 336.02 : x
  2. Step 2: Convert to fraction form
    379.76/566.48 = 336.02/x
  3. Step 3: Cross multiply
    379.76x = 566.48 × 336.02
  4. Step 4: Simplify right side
    379.76x = 190,346.93
  5. Step 5: Solve for x
    x = 190,346.93/379.76
  6. Step 6: Final answer
    x = 501.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.