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Finding the Fourth Proportional to 332.32, 457.08 and 266.68

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Solution

The fourth proportional to 332.32, 457.08 and 266.68 is: 366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.32 : 457.08 = 266.68 : x
  2. Step 2: Convert to fraction form
    332.32/457.08 = 266.68/x
  3. Step 3: Cross multiply
    332.32x = 457.08 × 266.68
  4. Step 4: Simplify right side
    332.32x = 121,894.09
  5. Step 5: Solve for x
    x = 121,894.09/332.32
  6. Step 6: Final answer
    x = 366.80

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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.