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Finding the Fourth Proportional to 357.96, 497.37 and 354.15

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Solution

The fourth proportional to 357.96, 497.37 and 354.15 is: 492.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.96 : 497.37 = 354.15 : x
  2. Step 2: Convert to fraction form
    357.96/497.37 = 354.15/x
  3. Step 3: Cross multiply
    357.96x = 497.37 × 354.15
  4. Step 4: Simplify right side
    357.96x = 176,143.59
  5. Step 5: Solve for x
    x = 176,143.59/357.96
  6. Step 6: Final answer
    x = 492.08

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.