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Finding the Fourth Proportional to 446.40, 604.80 and 446.40

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Solution

The fourth proportional to 446.40, 604.80 and 446.40 is: 604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.40 : 604.80 = 446.40 : x
  2. Step 2: Convert to fraction form
    446.40/604.80 = 446.40/x
  3. Step 3: Cross multiply
    446.40x = 604.80 × 446.40
  4. Step 4: Simplify right side
    446.40x = 269,982.72
  5. Step 5: Solve for x
    x = 269,982.72/446.40
  6. Step 6: Final answer
    x = 604.80

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.