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Finding the Fourth Proportional to 565.80, 780.80 and 332.92

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Solution

The fourth proportional to 565.80, 780.80 and 332.92 is: 459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.80 : 780.80 = 332.92 : x
  2. Step 2: Convert to fraction form
    565.80/780.80 = 332.92/x
  3. Step 3: Cross multiply
    565.80x = 780.80 × 332.92
  4. Step 4: Simplify right side
    565.80x = 259,943.94
  5. Step 5: Solve for x
    x = 259,943.94/565.80
  6. Step 6: Final answer
    x = 459.43

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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.