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Finding the Fourth Proportional to 476.12, 655.62 and 444.26

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Solution

The fourth proportional to 476.12, 655.62 and 444.26 is: 611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.12 : 655.62 = 444.26 : x
  2. Step 2: Convert to fraction form
    476.12/655.62 = 444.26/x
  3. Step 3: Cross multiply
    476.12x = 655.62 × 444.26
  4. Step 4: Simplify right side
    476.12x = 291,265.74
  5. Step 5: Solve for x
    x = 291,265.74/476.12
  6. Step 6: Final answer
    x = 611.75

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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.