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Finding the Fourth Proportional to 332.72, 497.44 and 281.93

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Solution

The fourth proportional to 332.72, 497.44 and 281.93 is: 421.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.72 : 497.44 = 281.93 : x
  2. Step 2: Convert to fraction form
    332.72/497.44 = 281.93/x
  3. Step 3: Cross multiply
    332.72x = 497.44 × 281.93
  4. Step 4: Simplify right side
    332.72x = 140,242.55
  5. Step 5: Solve for x
    x = 140,242.55/332.72
  6. Step 6: Final answer
    x = 421.50

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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.