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Finding the Fourth Proportional to 544.36, 750.18 and 388.84

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Solution

The fourth proportional to 544.36, 750.18 and 388.84 is: 535.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.36 : 750.18 = 388.84 : x
  2. Step 2: Convert to fraction form
    544.36/750.18 = 388.84/x
  3. Step 3: Cross multiply
    544.36x = 750.18 × 388.84
  4. Step 4: Simplify right side
    544.36x = 291,699.99
  5. Step 5: Solve for x
    x = 291,699.99/544.36
  6. Step 6: Final answer
    x = 535.86

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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.