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Finding the Fourth Proportional to 503.36, 755.93 and 330.38

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Solution

The fourth proportional to 503.36, 755.93 and 330.38 is: 496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.36 : 755.93 = 330.38 : x
  2. Step 2: Convert to fraction form
    503.36/755.93 = 330.38/x
  3. Step 3: Cross multiply
    503.36x = 755.93 × 330.38
  4. Step 4: Simplify right side
    503.36x = 249,741.20
  5. Step 5: Solve for x
    x = 249,741.20/503.36
  6. Step 6: Final answer
    x = 496.15

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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.