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Finding the Fourth Proportional to 410.64, 566.85 and 300.91

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Solution

The fourth proportional to 410.64, 566.85 and 300.91 is: 415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.64 : 566.85 = 300.91 : x
  2. Step 2: Convert to fraction form
    410.64/566.85 = 300.91/x
  3. Step 3: Cross multiply
    410.64x = 566.85 × 300.91
  4. Step 4: Simplify right side
    410.64x = 170,568.32
  5. Step 5: Solve for x
    x = 170,568.32/410.64
  6. Step 6: Final answer
    x = 415.38

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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.