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Finding the Fourth Proportional to 503.87, 756.20 and 284.63

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Solution

The fourth proportional to 503.87, 756.20 and 284.63 is: 427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.87 : 756.20 = 284.63 : x
  2. Step 2: Convert to fraction form
    503.87/756.20 = 284.63/x
  3. Step 3: Cross multiply
    503.87x = 756.20 × 284.63
  4. Step 4: Simplify right side
    503.87x = 215,234.14
  5. Step 5: Solve for x
    x = 215,234.14/503.87
  6. Step 6: Final answer
    x = 427.17

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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.