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Finding the Fourth Proportional to 503.21, 756.14 and 259.89

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Solution

The fourth proportional to 503.21, 756.14 and 259.89 is: 390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.21 : 756.14 = 259.89 : x
  2. Step 2: Convert to fraction form
    503.21/756.14 = 259.89/x
  3. Step 3: Cross multiply
    503.21x = 756.14 × 259.89
  4. Step 4: Simplify right side
    503.21x = 196,511.93
  5. Step 5: Solve for x
    x = 196,511.93/503.21
  6. Step 6: Final answer
    x = 390.52

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Double scale
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Similar ratio
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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.