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Finding the Fourth Proportional to 504.51, 755.39 and 382.40

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Solution

The fourth proportional to 504.51, 755.39 and 382.40 is: 572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.51 : 755.39 = 382.40 : x
  2. Step 2: Convert to fraction form
    504.51/755.39 = 382.40/x
  3. Step 3: Cross multiply
    504.51x = 755.39 × 382.40
  4. Step 4: Simplify right side
    504.51x = 288,861.14
  5. Step 5: Solve for x
    x = 288,861.14/504.51
  6. Step 6: Final answer
    x = 572.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.