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Finding the Fourth Proportional to 457.33, 631.67 and 332.79

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Solution

The fourth proportional to 457.33, 631.67 and 332.79 is: 459.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.33 : 631.67 = 332.79 : x
  2. Step 2: Convert to fraction form
    457.33/631.67 = 332.79/x
  3. Step 3: Cross multiply
    457.33x = 631.67 × 332.79
  4. Step 4: Simplify right side
    457.33x = 210,211.80
  5. Step 5: Solve for x
    x = 210,211.80/457.33
  6. Step 6: Final answer
    x = 459.65

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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.