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Finding the Fourth Proportional to 503.57, 754.53 and 286.89

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Solution

The fourth proportional to 503.57, 754.53 and 286.89 is: 429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.57 : 754.53 = 286.89 : x
  2. Step 2: Convert to fraction form
    503.57/754.53 = 286.89/x
  3. Step 3: Cross multiply
    503.57x = 754.53 × 286.89
  4. Step 4: Simplify right side
    503.57x = 216,467.11
  5. Step 5: Solve for x
    x = 216,467.11/503.57
  6. Step 6: Final answer
    x = 429.87

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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.