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Finding the Fourth Proportional to 525.26, 723.21 and 476.66

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Solution

The fourth proportional to 525.26, 723.21 and 476.66 is: 656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.26 : 723.21 = 476.66 : x
  2. Step 2: Convert to fraction form
    525.26/723.21 = 476.66/x
  3. Step 3: Cross multiply
    525.26x = 723.21 × 476.66
  4. Step 4: Simplify right side
    525.26x = 344,725.28
  5. Step 5: Solve for x
    x = 344,725.28/525.26
  6. Step 6: Final answer
    x = 656.29

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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.