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Finding the Fourth Proportional to 606.50, 836.86 and 357.90

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Solution

The fourth proportional to 606.50, 836.86 and 357.90 is: 493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.50 : 836.86 = 357.90 : x
  2. Step 2: Convert to fraction form
    606.50/836.86 = 357.90/x
  3. Step 3: Cross multiply
    606.50x = 836.86 × 357.90
  4. Step 4: Simplify right side
    606.50x = 299,512.19
  5. Step 5: Solve for x
    x = 299,512.19/606.50
  6. Step 6: Final answer
    x = 493.84

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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.