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Finding the Fourth Proportional to 494.86, 742.37 and 358.93

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Solution

The fourth proportional to 494.86, 742.37 and 358.93 is: 538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.86 : 742.37 = 358.93 : x
  2. Step 2: Convert to fraction form
    494.86/742.37 = 358.93/x
  3. Step 3: Cross multiply
    494.86x = 742.37 × 358.93
  4. Step 4: Simplify right side
    494.86x = 266,458.00
  5. Step 5: Solve for x
    x = 266,458.00/494.86
  6. Step 6: Final answer
    x = 538.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.