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Finding the Fourth Proportional to 606.43, 836.76 and 357.76

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Solution

The fourth proportional to 606.43, 836.76 and 357.76 is: 493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.43 : 836.76 = 357.76 : x
  2. Step 2: Convert to fraction form
    606.43/836.76 = 357.76/x
  3. Step 3: Cross multiply
    606.43x = 836.76 × 357.76
  4. Step 4: Simplify right side
    606.43x = 299,359.26
  5. Step 5: Solve for x
    x = 299,359.26/606.43
  6. Step 6: Final answer
    x = 493.64

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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.