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Finding the Fourth Proportional to 410.12, 566.48 and 305.36

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Solution

The fourth proportional to 410.12, 566.48 and 305.36 is: 421.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.12 : 566.48 = 305.36 : x
  2. Step 2: Convert to fraction form
    410.12/566.48 = 305.36/x
  3. Step 3: Cross multiply
    410.12x = 566.48 × 305.36
  4. Step 4: Simplify right side
    410.12x = 172,980.33
  5. Step 5: Solve for x
    x = 172,980.33/410.12
  6. Step 6: Final answer
    x = 421.78

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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.