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Finding the Fourth Proportional to 544.41, 751.32 and 320.31

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Solution

The fourth proportional to 544.41, 751.32 and 320.31 is: 442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.41 : 751.32 = 320.31 : x
  2. Step 2: Convert to fraction form
    544.41/751.32 = 320.31/x
  3. Step 3: Cross multiply
    544.41x = 751.32 × 320.31
  4. Step 4: Simplify right side
    544.41x = 240,655.31
  5. Step 5: Solve for x
    x = 240,655.31/544.41
  6. Step 6: Final answer
    x = 442.05

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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.