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Finding the Fourth Proportional to 493.47, 740.43 and 262.51

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Solution

The fourth proportional to 493.47, 740.43 and 262.51 is: 393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.47 : 740.43 = 262.51 : x
  2. Step 2: Convert to fraction form
    493.47/740.43 = 262.51/x
  3. Step 3: Cross multiply
    493.47x = 740.43 × 262.51
  4. Step 4: Simplify right side
    493.47x = 194,368.43
  5. Step 5: Solve for x
    x = 194,368.43/493.47
  6. Step 6: Final answer
    x = 393.88

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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.