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Finding the Fourth Proportional to 445.04, 613.68 and 295.68

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Solution

The fourth proportional to 445.04, 613.68 and 295.68 is: 407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.04 : 613.68 = 295.68 : x
  2. Step 2: Convert to fraction form
    445.04/613.68 = 295.68/x
  3. Step 3: Cross multiply
    445.04x = 613.68 × 295.68
  4. Step 4: Simplify right side
    445.04x = 181,452.90
  5. Step 5: Solve for x
    x = 181,452.90/445.04
  6. Step 6: Final answer
    x = 407.72

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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.